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SECTION C:

FUEL SYSTEM ITEMS: Including Airbox, Carbs, Intakes, Fuel Tanks, Sending Units, Petcocks, Gas Caps, Tank Mounts, Etc.

--Mikuni Parts


MIKUNI CARB REBUILD PARTS:

NOTE: Mikuni carbs were originally used on all Yamaha XJ550 models (BS28 series carbs), all 1992-98 XJ600 Seca II models (BDS26 series in the USA, and BDST28 series in the rest-of-the-world), all 1984-85 FJ600 models (BS32 series carbs), all XJ650 Turbo models (BS30 series carbs), all XJ700-X and XJ750-X models (BS33 series carbs), XJ900RK and RL model (BS35 series carbs), all XJ900 N/FN and F models (BS36 series carbs), and all XJ1100 and XS1100 models (both used BS34 series carbs, but there are vast differences between the XJ1100 and many of the XS1100 model carbs). All other XJ models from this era (XJ650 non-Turbo models, XJ700 non-"X" models, and all XJ750 non-X models) used Hitachi carbs.

The "series" number of the carbs refers to the internal diameter of the carb throat (the area where the butterfly valves are) and is expressed in the closest millimeter measurement. Thus the BS28 series carbs have a 28mm ID throat, and the BS33 series carbs have a 33mm ID throat, etc.

Original carb bodies are typically marked with an ink stamping that identifies the intended use of the carbs......for example, the 1983 XJ900RK carbs (US models) would have an ink stamping that reads "35H00", while the XJ700XNC carbs would be inked as "1FL00", etc. This ink stamp could have been on the carb bodies, or on the sides or bottom of the bowls......and, after 20+ years and a number of carb cleaning efforts, are probably long gone.

Different series of Mikuni carbs are quite difficult to properly identify from one another, and Mikuni carbs were also used on other manufacturer model bikes, and while even the same "series" of Mikuni carbs may have been used on, say, a certain Kawasaki model bike, the internal jetting, valving, and other design elements (choke actuation method, etc.) typically renders such carbs as "similar but different enough" to not be directly (or even indirectly!) interchangeable with the proper Yamaha version carbs for a particular model.

NOTE: "OEM" refers to an original Yamaha factory part, whereas "Replacement" or "Aftermarket" refers to a part not made by Yamaha or one of their original suppliers. Note that an OEM" part may be made by Yamaha's original supplier, even though such part is no longer serviced through the Yamaha factory parts system.


- MIKUNI CARB REBUILDING INFORMATION GUIDES:

http://xjbikes.com/forums/index.php?threads/3633

and

http://xjbikes.com/forums/index.php?threads/3690

and

http://www.xj4ever.com/mikuni carb cleaning.pdf

and

https://thexscafedotcom.files.wordpress.com/2014/06/mikuni_bs-cv_carburetor_rebuild_tutorial.pdf

Note that the above link shows the rebuild for the BS28 series of Mikuni carbs (same as on XJ550 models) that are off a Suzuki, and while some minor differences exist ( i.e the choke plunger system and the locknuts on the synch screws), 99% of the information (and pictures) will crossover to the XJ550 model carbs.

and

http://xjbikes.com/forums/index.php?threads/31061

NOTE: the above link shows the exploded view of the BS28/BS30 series of Mikuni carbs (used on XJ550 and XJ650 Turbo models);, the BS33-and-larger series move the pilot air jet from under the vac piston diaphram to the carb throat.........and have the choke plunger coming out of the side of the carb body rather than the top.




MIKUNI CARB UPPER END PARTS:

NOT: fuel jets, air jets, float valves, and main jet needles are located in the section "LOWER END PARTS" further below.


MIKUNI THROTTLE SHAFT REBUILD PARTS:


Mikuni Throttle Shaft Seals:

aaa) OEM and aftermarket Mikuni carb THROTTLE SHAFT SEALS...these are the seals on the outside of the carb body that the throttle shaft passes through. Uses 2 per carb, but without taking the carbs apart from their rack, the only ones you can replace are the outermost seals on the end carbs.

The aluminum-bodied carbs, when heated by conduction from the engine, tend to expand more quickly and by a greater amount than the air-cooled steel throttle shafts.

Thus as these shaft seals wear and harden, they can't always maintain a vacuum-tight seal in all conditions, resulting in a lean running condition once the engine is warmed up----even though they "seal" perfectly well at idle, or when the carb bodies are still cool. If the pilot screws are adjusted with the bike partially warmed up, it may appear to be richer than necessary when cool, and then running lean when hot, resulting in an incredibly confusing and frustrating situation to diagnose and remedy.

Used on all XJ400, XJ550, 1984-85 FJ600, 1986-90 YX600 Radian, 1992-98 XJ600 Seca II, XJ650 Turbo, XJ700-X, XJ750-X, all XJ900RK, RL, N/FN, and F models, XJ1100, 1978-81 XS1100 models, as well as 1983-85 XVZ12, 1986-90 XVZ13, 1985-86 and 1989-2007 VMX12 V-Max models, 1988-90 XV250 Virago Route 66, 1995-20 XV250 Virago / V-Star, 1984-85 RZ350, 1970-71 XS1, 1972-73 XS2 / TX650, 1973-75 TX650, 1973-74 TX750, 1978-79 XS400, 1976-78 XS500, 1975-77 XS650, 1977-79 XS750, 1988-90 FZR400, 1989-99 FZR600, 1992-07 XT225, 1980-83 XT250, 1991 and 1999 TT225, 1999-04 TTR225, and 1980-82 TT250 models, as well as any other models of this era that used a throttle shaft with a 7.97mm OD.



These V-shaped seals are installed with their open “face” facing away from the carb throat. The OEM seals (HCP6838B) have one open face and one closed face, while the aftermarket HCP38B seals are like the original-installed seals, and have an “open” face on both sides (and thus for the HCP38B aftermarket seals, it does not matter in which direction they are installed!).

An excellent write-up on the process required to take the carbs apart fully and replace these seals can be reviewed at:

]http://www.xj4ever.com/hitachi throttle shaft seals.pdf

Note that although the above guide is in regards to Hitachi carbs, the shaft seal replacement tasks and procedures are basically identical between both the Hitachi and Mikuni carbs.


HCP23265 OEM Mikuni throttle shaft SEAL, used on all of the following models only: 1978-79 XS1100, 1978-79 XS400, 1978 XS500, 1977-79 XS750, 1992-07 XT225, 1980-83 XT250, 1991 and 1999 TT225, 1999-2004 TTR225, and 1980-82 TT250 models. Each:
$ 10.95

HCP23265ET2 OEM Mikuni throttle shaft SEALS, pair:
$ 20.95

HCP23265ET4 OEM Mikuni throttle shaft SEALS, set of 4:
$ 40.95

HCP23265ET6 OEM Mikuni throttle shaft SEALS, set of 6:
$ 60.95

HCP23265SET8 OEM Mikuni throttle shaft SEALS, set of 8:
$ 79.95




HCP6838B OEM Mikuni throttle shaft SEAL, used on all XJ400, XJ550, 1984-85 FJ600, 1986-90 YX600 Radian, 1992-98 XJ600 Seca II, XJ650 Turbo, XJ700-X, XJ750-X, all XJ900RK, RL, N/FN, and F models, XJ1100, 1980-81 XS1100 models, as well as 1983-85 XVZ12, 1986-90 XVZ13, 1985-86 and 1989-2007 VMX12 V-Max models, 1988-90 XV250 Virago Route 66, 1995-20 XV250 Virago / V-Star, 1984-85 RZ350, 1970-71 XS1, 1972-73 XS2 / TX650, 1973-75 TX650, 1973-74 TX750, 1975-77 XS650, 1988-90 FZR400, 1989-99 FZR600, models, as well as any other models of this era that used a throttle shaft with a 7.97mm OD. Each:
$ 6.95

HCP6838BSET2 OEM Mikuni throttle shaft SEALS, pair:
$ 13.75

HCP6838BSET4 OEM Mikuni throttle shaft SEALS, set of 4:
$ 26.95

HCP6838BSET6 OEM Mikuni throttle shaft SEALS, set of 6:
$ 39.95

HCP6838BSET8 OEM Mikuni throttle shaft SEALS, set of 8:
$ 52.95




HCP38B Aftermarket Mikuni throttle shaft SEAL, used on all XJ400, XJ550, 1984-85 FJ600, 1986-90 YX600 Radian, 1992-98 XJ600 Seca II, XJ650 Turbo, XJ700-X, XJ750-X, all XJ900RK, RL, N/FN, and F models, XJ1100, 1980-81 XS1100 models, as well as 1983-85 XVZ12, 1986-90 XVZ13, 1985-86 and 1989-2007 VMX12 V-Max models, 1988-90 XV250 Virago Route 66, 1995-20 XV250 Virago / V-Star, 1984-85 RZ350, 1970-71 XS1, 1972-73 XS2 / TX650, 1973-75 TX650, 1973-74 TX750, 1975-77 XS650, 1988-90 FZR400, 1989-99 FZR600, models, as well as any other models of this era that used a throttle shaft with a 7.97mm OD. Each
$ 5.95

HCP38BSET2 Aftermarket Mikuni throttle shaft SEALS, pair:
$ 10.50

HCP38BSET4 Aftermarket Mikuni throttle shaft SEALS, set of 4:
$ 20.75

HCP38BSET6 Aftermarket Mikuni throttle shaft SEALS, set of 6:
$ 30.95

HCP38BSET8 Aftermarket Mikuni throttle shaft SEALS, set of 8:
$ 39.95


We recommend the use of silicone grease when installing any of these seals:

HCP28407 Aftermarket o-ring, oil seal, and gasket installation pure SILICONE GREASE. This small, 5-gram snap-open "pillow packet" is enough for a dozens of small seals, o-rings, and the like. Each:
$ 4.95

HCP1714 Aftermarket o-ring, oil seal, and gasket installation pure SILICONE GREASE. This generous 1/2-oz. tub goes a long way, because just like Brylcreem, "just a little dab will do ya'!" Each:
$ 9.95



NOTE: the following product can only be shipped via ground transport (which thus eliminates the Priority Mail level of service for this item) and cannot (and will not----don't even ask!) be shipped outside of the continental USA. Therefore it may have to be shipped in a separate package from the remainder of your order, and will thus incur additional shipping charges

HCP20861 Aftermarket industrial-strength SILICONE LUBE, in a large 16-ounce aerosol can. Concentrated silicone sprays on wet, and then dries to a super-slick, clear, non-greasy, non-staining finish. Resists moisture, stops squeeks, prevents binding on all types of surfaces (wood, metal, plastic, rubber, even fabrics). Won't wash away, protect against rust and corrosion, stable from -100 degrees up to 500-F. This fluid is also a great choice for use as installation lubricant for o-rings, oil seals, etc. (similar to our HCP1714 or HCP28407 silicone grease paste) or wherever petroleum-based lubricants are not recommended.
$ 24.95




bbb) OEM and aftermarket Mikuni carb THROTTLE SHAFT SEAL PLASTIC SHIM WASHER ... these washers go directly "outside" of the HCP6838B or the HCP38B throttle shaft seals listed above. Same notes as listed above about the seals (regarding the ease of replacement) also applies to these shims. NOTE: although these shims do not typically "wear out" like the seals do, you should replace them if they appear cracked, brittle, or are missing. Used on all XJ400, XJ550, 1984-85 FJ600, 1992-98 XJ600 Seca II, XJ650 Turbo, XJ700-X, XJ750-X, all XJ900RK, RL, N/FN, and F models, XJ1100, and XS1100 models, as well as 1983-85 XVZ12, 1986-90 XVZ13, and 1985-86 and 1989-2007 VMX12 V-Max models. Use 1 shim per throttle, on the side opposite the shaft return springs only.

HCP6837 OEM Mikuni throttle shaft seal SHIM WASHER, single:
$ 6.95

HCP6837SET4 OEM Mikuni throttle shaft seal SHIM WASHERS, four shims:
$ 24.95



HCP39C Aftermarket Mikuni throttle shaft seal SHIM WASHER, single:
$ 4.95

HCP39CSET4 Aftermarket Mikuni throttle shaft seal SHIM WASHERS, four shims:
$ 17.95


COMMENTARY: These seals are a VERY common source of vacuum leaks into the carbs, making tuning (synch, colortune, etc.) somewhere between very difficult and next-to-impossible. And here's the dirty little secret that no one really talks about:

If you read through these boards often and enough---or any other websites or lists devoted to these XJ bikes----you'll find a common theme in regards to these bikes, and it goes something like this:

"My bike doesn't run right."

And 9 times out of 10, it's due to a carb problem. And to make matters worse, these bikes don't just use one carb, they use four, which means that the synchronization of the four carbs to each other is critical in order for them to perform properly.

And 95% of the problems with the carbs is this: they are dirty (more like filthy!) inside due to age, and these seals are worn out. But to replace these seals (and also to properly get the insides of the carbs absolutely, positively, ZESTFULLY clean), you're gonna have to pull the carb rack apart. Although that task is not mechanically difficult....nor does it take any special tools to do it.....the re-assembly process will MERCILESSLY PUNISH the careless or impatient mechanic or hobbyist. A tremendous attention to detail and organization is needed before you begin to take these carbs apart, so that you will have all the proper notes, drawings, sketches, etc. to put humpty-dumpty back together again, properly.

Since most people lack those skills or discipline, you will find most of the experienced experts on the various boards and forums telling you to NOT take the carbs apart, and to forego the proper cleaning and parts replacement steps needed.

I'm not trying to tell you to do, or not to do the task properly yourself; all I can tell you is what my own personal experience is. If you have the proper tools, time, and organizational skills and the PATIENCE to do the job right, breaking a rack apart and doing the job properly isn't that difficult. If you don't, it's a nightmare.

And the other dirty little secret is this: before you can synch and tune your carbs properly, you MUST check and adjust your valve clearances (replace worn valve shims), or all the synching and colortuning in the world isn't going to give you optimal results.

Sorry to be the bearer of such bad news, but as always, the truth will set you free (or at least solve most of your tuning and performance issues!).

Luckily, all of the parts and special tools needed to perform a proper tune up ARE available. I guess we should appreciate the little things in life more than we usually do........


We also strongly recommend the purchase of a new set of throttle shaft butterfly retaining screws, as it is very common to strip the heads out of the original screws while removing them. Replacement screws are listed further below.

Also, you may find it next-to-impossible to properly remove the original screws without using the proper JIS-style screwdriver. Typical "phillips-drive" style screwdrivers do not have the proper tip design to engage the slots on JIS-specifications screws (which all screws on Japanese bikes are) and tend to very easily strip out the screw heads. We offer complete sets of various sized JIS screwdrivers, but those people wanting only the correct size screwdriver for these throttle shaft screws should order the HCP5901 (size #2) screwdriver:


JIS Screwdrivers:

mt1) Almost every screw on these bikes are "JIS" design screws, JIS standing for Japanese Industrial Standards, and both the depth and design on the phillips-head "slot" is different than typical US slots. In a nutshell, JIS screws (which can be easily identified by the small punched single "dot" on the screw head, in-between two of the screw slots) have both deeper and "squarer" slots and thus can hold more torque than their rest-of-the-world counterparts. They also require a JIS screwdriver to take full advantage of, and to prevent rounding out the slots as typical phillips screwdrivers will do. The more "rounded" edges of a standard phillips-drive screwdriver cannot exert as much torque on the screw head (by design, actually) and will "cam-out" of the slots, taking some of the slot material with it.....and then you have what is affectionately known as a !!#&$!?**#! stripped out screw head!

So it might be a good idea to also invest in a set of quality JIS screwdrivers; trust me, they make a difference (and yes, they can be used on standard phillips-drive screws, too).

We offer these tools in three different quality grades and styles to meet your particular needs:

* Standard-Grade screwdrivers are a low-cost alternative that do a fine job in light-duty use.
* Mechanics-grade screwdrivers are a heavy-duty design and is recommended for the typical home mechanic or shop.
* Impact-grade screwdrivers feature a hardened “head” and an internal cam-drive that rotates the shaft about 12-degrees when struck by a hammer -----similar to the operation of an impact driver, but in a much more useful form. These drivers look, feel, and operate just like a mechanic-grade screwdriver above, but can also be given a sturdy “whack!” to help persuade frozen fasteners to give up their grip. Highly recommended when working on the carbs (the upper and lower rack bracket screws are a beast to remove without an impact driver ) or in any number of other situations when working on seized or rusted fasteners.


Basic JIS Screwdriver Sets:

HCP21127 Aftermarket JIS-standards STANDARD-GRADE SCREWDRIVER SET. This set of 3 drivers contains one each of standard-length #1, #2, and #3 size phillips-drive, JIS-standard screwdrivers, and this range of sizes will handle everything down to an M2 sized screw (that's tiny, smaller than the size of the petcock faceplate mounting screws) all the way up to the biggest screws commonly used on these bikes. These standard-grade screwdrivers all feature a comfortable gel-covered handle, black-chrome plated steel shafts, and magnetized drive tips.
$ 42.95

HCP17479 Aftermarket JIS-standards MECHANICS-GRADE SCREWDRIVER SET. This set of 3 drivers contains one each of standard-length #1, #2, and #3 size phillips-drive, JIS-standard screwdrivers, and this range of sizes will handle everything down to an M2 sized screw (that's tiny, smaller than the size of the petcock faceplate mounting screws) all the way up to the biggest screws commonly used on these bikes. These mechanics-grade screwdrivers all feature sturdy comfort-grip handles, chrome plated steel shafts, and magnetized drive tips.
$ 49.95

HCP23604 Aftermarket JIS-standards MECHANICS-GRADE SCREWDRIVER BITS SET. This set of 4 driver bits contains one each of 1/4” hex-drive bits in the #0, #1, #2, and #3 size phillips-drive, JIS-standard screwdriver bits, and this range of sizes will handle everything down to an M1 sized screw (that's tiny, smaller than the size of the petcock faceplate mounting screws) all the way up to the biggest screws commonly used on these bikes. These mechanics-grade screwdriver bits are approximately 1” long and are designed to be used in a 1/4” bit holder or similar..
$ 17.95



Carb Rebuild Screwdriver Sets:

HCP21183SET Aftermarket JIS-standard MECHANICS-GRADE SCREWDRIVER SET. This set of 3 drivers contains one each of the standard-length #2 and #3 size phillips-drive, JIS-standard screwdrivers, and a stubby straight-blade screwdriver that properly fits the pilot mixture screw slot. This range of sizes will handle everything down to an M3 sized screw all the way up to the largest screws found on the carbs. These mechanics-grade screwdrivers all feature sturdy comfort-grip handles, chrome plated steel shafts, and magnetized drive tips.
$ 54.95

HCP21184SET Aftermarket JIS-standard IMPACT-GRADE SCREWDRIVER SET. This set of 3 drivers contains one each of the standard-length #2 and #3 size phillips-drive, JIS-standard impact screwdrivers, and a stubby straight-blade screwdriver that properly fits the pilot mixture screw slot. This range of sizes will handle everything down to an M3 sized screw all the way up to the largest screws found on the carbs. These mechanics-grade screwdrivers all feature sturdy comfort-grip handles, knurled chrome plated steel shafts, and “sure-grip” textured, magnetized drive tips. The inclusion of the impact drivers can make the breakdown of the carb rack much easier.
$ 74.95


Fuel System Service Screwdriver Sets:

These sets are the same as the Carb Rebuild Sets above, but also include the #1 sized phillips-drive JIS-tip screwdriver that will be useful when servicing the petcock.

HCP21185SET Aftermarket JIS-standards MECHANICS-GRADE SCREWDRIVER SET. This set of 4 drivers contains one each of the standard-length #1, #2, and #3 size phillips-drive, JIS-standard screwdrivers, and a stubby straight-blade screwdriver that properly fits the pilot mixture screw slot. This range of sizes will handle everything down to an M3 sized screw all the way up to the largest screws found on the carbs. These mechanics-grade screwdrivers all feature sturdy comfort-grip handles, chrome plated steel shafts, and magnetized drive tips.
$ 64.95

HCP21186SET Aftermarket JIS-standards IMPACT-GRADE SCREWDRIVER SET. This set of 4 drivers contains the standard-length #1 phillips-drive, JIS-standard screwdriver, one each of the #2, and #3 size phillips-drive JIS-tip impact screwdrivers, and a stubby straight-blade screwdriver that properly fits the pilot mixture screw slot. This range of sizes will handle everything down to an M3 sized screw all the way up to the largest screws found on the carbs. These mechanics-grade screwdrivers all feature sturdy comfort-grip handles, knurled chrome plated steel shafts, and “sure-grip” textured, magnetized drive tips. The inclusion of the impact drivers can make the breakdown of the carb rack much easier.
$ 84.95


Full Service Screwdriver Sets:

HCP21187SET Aftermarket JIS-standards MECHANICS-GRADE SCREWDRIVER SET. This set of 6 drivers contains a set of standard-length of the #1, #2, and #3 size phillips-drive, JIS-standard screwdrivers, one each of the stubby #1 and #2 size phillips-drive JIS-tip screwdrivers, and a stubby straight-blade screwdriver that properly fits the pilot mixture screw slot. This range of sizes will handle everything down to an M3 sized screw all the way up to the largest screws found on the carbs. These mechanics-grade screwdrivers all feature sturdy comfort-grip handles, chrome plated steel shafts, and magnetized drive tips.
$ 99.95

HCP21188SET Aftermarket JIS-standards IMPACT-GRADE SCREWDRIVER SET. This set of 6 drivers contains a standard-length #1 JIS-tip screwdriver, one each of the #2 and #3 size phillips-drive, JIS-standard impact drivers, one each of the stubby #1 and #2 size phillips-drive, JIS-standard screwdrivers, and a stubby straight-blade screwdriver that properly fits the pilot mixture screw slot. This range of sizes will handle everything down to an M3 sized screw all the way up to the largest screws found on the carbs. These mechanics-grade screwdrivers all feature sturdy comfort-grip handles, knurled chrome plated steel shafts, and “sure-grip” textured, magnetized drive tips. The inclusion of the impact drivers makes the removal of stuck or seized fasteners much easier and more convenient. With this set you can rule the world in style!
$ 119.95



Individual JIS-standards Screwdrivers:

The #2 and #3 size phillips-drive screwdrivers fit the most commonly used size screws on the carbs, gauge clusters, etc.

HCP21181 Aftermarket straight-blade STUBBY SCREWDRIVER, short 1” shaft length, modified to properly fit the pilot mixture screw slotted head.
$ 19.95

HCP21130 Aftermarket size #1 JIS-standards STUBBY SCREWDRIVER, for m2-m4 sized screws, short 1” shaft length.
$ 18.95

HCP21131 Aftermarket size #2 JIS-standards STUBBY SCREWDRIVER, for m3-m5 sized screws, short 1” shaft length.
$ 19.95



HCP5900 Aftermarket size #1 JIS-standards SCREWDRIVER, for m2-m4 sized screws, standard 3” shaft length.
$ 14.95

HCP5901 Aftermarket size #2 JIS-standards SCREWDRIVER, for m3-m5 sized screws, standard 4” shaft length.
$ 17.95

HCP5902 Aftermarket size #3 JIS-standards SCREWDRIVER, for m6-m8 sized screws, standard 6” shaft length.
$ 21.95

HCP5903 Aftermarket size #4 JIS-standards SCREWDRIVER, for m8-up sized screws, standard 8” shaft length.
$ 24.95



HCP21135 Aftermarket size #2 JIS-standards IMPACT SCREWDRIVER, for m3-m5 sized screws, standard 4” shaft length.
$ 27.95

HCP21136 Aftermarket size #3 JIS-standards IMPACT SCREWDRIVER, for m6-m8 sized screws, standard 6” shaft length.
$ 29.95



HCP23600 Aftermarket size #0 JIS-standards SHORT SCREWDRIVER BIT , for m2 and smaller size screws. This 1” long bit fits in any standard 1/4” bit holder.
$ 4.95

HCP23601 Aftermarket size #1 JIS-standards SHORT SCREWDRIVER BIT , for m2-m4 size screws. This 1” long bit fits in any standard 1/4” bit holder.
$ 4.95


HCP23602 Aftermarket size #2 JIS-standards SHORT SCREWDRIVER BIT , for m3-m5 size screws. This 1” long bit fits in any standard 1/4” bit holder.
$ 4.95

HCP28218 Aftermarket size #2 JIS-standards LONG SCREWDRIVER BIT , for m3-m5 size screws. This 3” long bit fits in any standard 1/4” bit holder.
$ 6.95


HCP23603 Aftermarket size #3 JIS-standards SHORT SCREWDRIVER BIT, for m6-m8 size screws. This 1” long bit fits in any standard 1/4” bit holder.
$ 4.95

HCP28220 Aftermarket size #3 JIS-standards LONG SCREWDRIVER BIT, for m6-m8 size screws. This 3” long bit fits in any standard 1/4” bit holder.
$ 6.95



HCP28224 Aftermarket JIS-standards SHORT SCREWDRIVER BITS SET, contains one each of the #0, #1, #2, and #3 size short (1” long) bits.
$ 17.95

HCP28225 Aftermarket JIS-standards LONG SCREWDRIVER BITS SET, contains one each of the #2 and #3 size (3” long) bits.
$ 12.95

HCP28226 Aftermarket JIS-standards COMPLETE SCREWDRIVER BITS SET, contains a complete set of short and long bits: one each of the #0, #1, #2, and #3 short bits, and one each of the #2 and #3 size long bits.
$ 27.95




Mikuni Throttle Shaft Hardware:

ts5) Aftermarket Mikuni throttle shaft BUTTERFLY VALVE MOUNTING SCREW. Each round butterfly "valve" is held to the steel throttle shaft via two tiny phillips head screws. The throttle shaft has self-locking threads which makes the removal of these screws an absolute chore and usually results in a buggered phillips head slot. These replacement screws come in a variety of materials and drive styles. Use 2 per carb, 8 per entire carb rack. Used on all XJ400, XJ550, 1984-85 FJ600, 1992-98 XJ600 Seca II, XJ650 Turbo, XJ700-X, XJ750-X, all XJ900RK, RL, N/FN, and F models, XJ1100, and XS1100 models, as well as 1983-85 XVZ12, 1986-90 XVZ13, and 1985-86 and 1989-2007 VMX12 V-Max models.

NOTE: these screws are an absolute BEAST to remove, and it is very easy to destroy the screw heads as well as the throttle shaft threads while trying to remove them---if proper precautions are not taken. You will want to review the information in this forum thread before attempting removal:

http://xjbikes.com/forums/index.php?threads/8011

and

http://xjbikes.com/forums/index.php?threads/17628

For all of the above reasons, our recommendation is to use the allen-head (hex drive) style screws (HCP7120 or HCP7346 below) to make future removal easier. These allen head screws are a bit longer (2mm) than the stock screws, so you may want to use a fine-tooth saw blade or equivalent to remove the extra length after they have been installed (although the extra length will not affect performance). ALSO, since it is not really feasible to peen or stake the screws once installed (as Mikuni originally did---they must have had a special fixture to perform this task), it is strongly recommended that you use some type of semi-permanent thread-locking fluid (such as our HCP1266 or HCP1267 thread locker fluids) when installing these screws.....as the last thing you want to have happen is having these screws back out during engine operation.....as that would be a sad, sad day for you and your engine!

And if you’re so unfortunate to have buggered the threads on the shaft, you might be able to rescue the threads on the throttle shafts by re-tapping the holes with this tap:

HCP6336 THREAD CHASER AND CLEAN-UP TAP, made from a high-speed uncoated steel. For the following holes:
- all Hitachi and Mikuni throttle shafts where the butterfly valve screw on
- all models petcock faceplate mounting screw holes.
$ 12.95

HCP28170 Aftermarket thread tap or EZ-out extractor TAP HANDLE, featuring offset tap handles and fully adjustable head for all m3-m12 size taps and size 0 to ½” extractors. This is the proper way to hold a tap or extractor to insure that the force is directed straight down and doesn’t “wobble” as you are cutting, reaming, or extracting. Much better than using pliers or vise-grips to hold the tool……..
$ 17.95



If the threads are too damaged, then we offer these problem-solver kits that contain a longer screw and special ultra-thin nut:

HCP26991SET Aftermarket Mikuni butterfly valve “problem-solver” MOUNTING SCREW & NUT SET, oval-head 18-8 stainless steel screw, phillips-drive. This longer-than-stock screw and matching thin nut allows you to salvage a throttle shaft which has damaged, stripped, or missing threads…..the longer reach of the threads clears the back side of the throttle shaft and allows the nut to secure the valve to the shaft. NOTE: the threads in the throttle shaft should be drilled out using our HCP26993 oversize drill bit, to remove any damaged threads and to slightly enlarge the hole, allowing the replacement screw to pass through the throttle shaft without engaging the shaft. NOTE: you must use thread-locking fluid HCP1266 when installing this fastener! Used on all XJ400, XJ550, 1984-85 FJ600, 1992-98 XJ600 Seca II, XJ650 Turbo, XJ700-X, XJ750-X, all XJ900RK, RL, N/FN, and F models, XJ1100, and XS1100 models, as well as 1983-85 XVZ12, 1986-90 XVZ13, and 1985-86 and 1989-2007 VMX12 V-Max models.. This set contain one screw and one nut, enough to repair one damaged hole. You will need to order 2 sets to repair both holes in a single throttle shaft.
$ 2.95

HCP26991SET8 Aftermarket Mikuni butterfly valve “problem-solver” MOUNTING SCREW & NUT SETS, oval-head 18-8 stainless steel screw, phillips-drive. Contains 8 screws and 8 nuts.
$ 14.95

HCP26993 Aftermarket throttle shaft screw OVERSIZE DRILL BIT allows you to remove damaged threads and slightly enlarge the screw hole in damaged throttle shafts so that our problem-solver screws can be used. 1/8” shank. For use with all Mikuni and Hitachi models.
$ 9.95

HCP1266 Low Strength THREAD LOCKER FLUID, 6ml squeeze tube. This is a semi-permanent formula that provides moderate vibration-loosening resistance, while still allowing for easy disassembly of the fastener with hand tools. This formula is recommended for upper and lower carb rack mount screws and the butterfly valve-to-throttle shaft retaining screws. A little bit goes a long way.......
$ 11.95


HCP26991KIT Aftermarket Mikuni butterfly valve “problem-solver” MOUNTING SCREW & NUT SETS, contains 8 of the HCP26991 screw and nut sets, a tube of the HCP1266 low-strength locker fluid, and the HCP26993 drill bit. This kit has enough parts to repair 8 damaged shaft holes..
$ 24.95



all of the following screws are for use on throttle shafts with undamaged threads :

HCP5899 Aftermarket Mikuni butterfly valve MOUNTING SCREW, oval-head 18-8 stainless steel screw with a phillips-drive, each:
$ 1.95

HCP5899SET2 Aftermarket Mikuni butterfly valve MOUNTING SCREW, oval-head 18-8 stainless steel screw with a phillips-drive, set of 2:
$ 2.95

HCP5899SET4 Aftermarket Mikuni butterfly valve MOUNTING SCREW, oval-head 18-8 stainless steel screw with a phillips-drive, set of 4:
$ 5.75

HCP5899SET8 Aftermarket Mikuni butterfly valve MOUNTING SCREW, oval-head 18-8 stainless steel screw with a phillips-drive, set of 8:
$ 8.95



HCP7120 Aftermarket Mikuni butterfly valve MOUNTING SCREW, 18-8 stainless steel flat-head screw with a 2mm hex-drive, each:
$ 1.95

HCP7120SET2 Aftermarket Mikuni butterfly valve MOUNTING SCREW, 18-8 stainless steel flat-head screw with a 2mm hex-drive, set of 2:
$ 2.95

HCP7120SET4 Aftermarket Mikuni butterfly valve MOUNTING SCREW, 18-8 stainless steel flat-head screw with a 2mm hex-drive, set of 4:
$ 5.75

HCP7120SET8 Aftermarket Mikuni butterfly valve MOUNTING SCREW, 18-8 stainless steel flat-head screw with a 2mm hex-drive, set of 8:
$ 8.95



HCP7346 Aftermarket Mikuni butterfly valve MOUNTING SCREW, flat-head black-oxide coated alloy steel screw with a 2mm hex-drive, each:
$ 1.95

HCP7346SET2 Aftermarket Mikuni butterfly valve MOUNTING SCREW, flat-head black-oxide coated alloy steel screw with a 2mm hex-drive, set of 2:
$ 2.95
HCP7346SET4 Aftermarket Mikuni butterfly valve MOUNTING SCREW, flat-head black-oxide coated alloy steel screw with a 2mm hex-drive, set of 4:
$ 5.75

HCP7346SET8 Aftermarket Mikuni butterfly valve MOUNTING SCREW, flat-head black-oxide coated alloy steel screw with a 2mm hex-drive, set of 8:
$ 8.95



vv2) Aftermarket small parts NEEDLE FILES SET. This set of 12 miniature swiss files allows you to easily get into those tight spots with precise control. A variety of files----round, flat, triangle---all have easy-grip round knurled handles. Each file is approximately, 6" long. Works great for knocking the peening off the back of the original Mikuni throttle shaft screws before you attempt to remove them.

HCP9802 Aftermarket small parts NEEDLE FILES SET.
$ 19.95




ts5) OEM and aftermarket Mikuni carb throttle shaft retaining E-CLIP...these shaft retainer clips go directly "outside" of the plastic shim washers listed above on the #1 and #4 carbs only. Used on all XJ550, 1984-85 FJ600, 1992-98 XJ600 Seca II, XJ650 Turbo, XJ700-X, XJ750-X, all XJ900RK, RL, N/FN, and F models, XJ1100, and all XS1100 models.


HCP6836 OEM Mikuni throttle shaft end retaining E-CLIP, bright plated spring steel, each:
$ 6.95

HCP6836SET2 OEM Mikuni throttle shaft end retaining E-CLIPS, set of 2:
$ 11.95


HCP905 Aftermarket Mikuni throttle shaft end retaining E-CLIP, black-phosphate coated spring steel as original, each:
$ 3.95

HCP905SET2 Aftermarket Mikuni throttle shaft end retaining E-CLIPS, set of 2:
$ 6.95


HCP2909 Aftermarket Mikuni throttle shaft end retaining E-CLIP, type 420 stainless spring steel, each:
$ 4.95

HCP2909SET2 Aftermarket Mikuni throttle shaft end retaining E-CLIPS, set of 2:
$ 8.95



ts55) OEM and aftermarket Mikuni carb THROTTLE SHAFT BRACKET RETAINER NUT and LOCKWASHER......used to secure the end bracket to the throttle shafts. For use on the #2 and #3 carbs only on all XJ550 models, 1984-85 FJ600, 1992-98 XJ600 Seca II, XJ650 Turbo models, and 1980-81 XS1100 models, used on all 4 carbs on 1978-79 XS1100 models, and used only on carb #3 on all XJ700-X, all XJ750-X, all XJ900, and XJ1100 models.

HCP22884 OEM throttle shaft end bracket retaining NUT, to secure the shaft end bracket to the shaft. Fits all 1978-81 XS1100 models carbs: use on all 4 carbs on the 1978-919 XS1100 carbs, and on all 4 carbs on the 1980-81 models. Each:
$ 6.95

HCP16805 Aftermarket throttle shaft end bracket retaining NUT, use 1 per shaft. Special thin nut is made from 18/8 stainless steel and has a bright finish. Use on the #2 and #3 carbs only on all XJ550 models, 1984-85 FJ600, 1992-98 XJ600 Seca II, XJ650 Turbo models, and only on carb #3 on all XJ700-X, all XJ750-X, all XJ900, and XJ1100 models. NOTE: the original nut is a 12mm hex; these are 13mm but will fit and work just fine. Each:
$ 2.95



HCP2185 OEM throttle shaft end bracket retaining nut LOCK WASHER, use 1 per shaft on the #2 and #3 carbs on all XJ550, 1984-85 FJ600, 1992-98 XJ600 Seca II, and XJ650 Turbo models, and only on carb #3 on all XJ700-X, all XJ750-X, all XJ900, and XJ1100 models . Made from 18/8 stainless steel and has a bright finish. Each:
$ 1.95

HCP16209 Aftermarket throttle shaft end bracket retaining nut LOCK WASHER, zinc-plated alloy steel, use 1 per shaft on the #2 and #3 carbs on all XJ550, 1984-85 FJ600, 1992-98 XJ600 Seca II, and XJ650 Turbo models, and only on carb #3 on all XJ700-X, all XJ750-X, all XJ900, and XJ1100 models. Each:
$ 0.95

HCP16100 Aftermarket throttle shaft end bracket retaining nut LOCK WASHER, 18-8 stainless-steel with a bright finish, use 1 per shaft on the #2 and #3 carbs on all XJ550, 1984-85 FJ600, 1992-98 XJ600 Seca II, and XJ650 Turbo models, and only on carb #3 on all XJ700-X, all XJ750-X, all XJ900, and XJ1100 models. Each:
$ 0.95

HCP16102 Aftermarket throttle shaft end bracket retaining nut LOCK WASHER, black-oxide coated finish, use 1 per shaft on the #2 and #3 carbs on all XJ550, 1984-85 FJ600, 1992-98 XJ600 Seca II, and XJ650 Turbo models, and only on carb #3 on all XJ700-X, all XJ750-X, all XJ900, and XJ1100 models. Each:
$ 0.95



ts67) Aftermarket Mikuni carb THROTTLE SHAFTS and END BRACKETS......these re-plated throttle shafts and the #2 and #3 carb (only) shaft end brackets are a great way to restore that brand-new look to your carb kit. Correct yellow-zinc plated brackets. NOTE: requires a $ 25.00 core charge, refundable upon the return of an undamaged, same-model, same-carb shaft or bracket.

XJ550 models:

HCP13624RP OEM re-plated original THROTTLE SHAFT, complete with its swaged (non-removable) shaft end bracket. Fits the #1 carb on all XJ550 models. NOTE: requires a $ 25.00 core charge, refundable upon the return of an undamaged, same-model, same-carb shaft. Each:
$ 29.95 + $ 25.00 refundable core charge

HCP13625RP OEM re-plated original THROTTLE SHAFT, complete with its swaged (non-removable) shaft end bracket. Fits the #2 carb on all XJ550 models. NOTE: requires a $ 25.00 core charge, refundable upon the return of an undamaged, same-model, same-carb shaft. Each:
$ 29.95 + $ 25.00 refundable core charge

HCP13626RP OEM re-plated original THROTTLE SHAFT, complete with its swaged (non-removable) shaft end bracket. Fits the #3 carb on all XJ550 models. NOTE: requires a $ 25.00 core charge, refundable upon the return of an undamaged, same-model, same-carb shaft. Each:
$ 29.95 + $ 25.00 refundable core charge

HCP13627RP OEM re-plated original THROTTLE SHAFT, complete with its swaged (non-removable) shaft end bracket. Fits the #4 carb on all XJ550 models. NOTE: requires a $ 25.00 core charge, refundable upon the return of an undamaged, same-model, same-carb shaft. Each:
$ 29.95 + $ 25.00 refundable core charge

HCP13679RP OEM re-plated original throttle shaft END BRACKET, attaches to the threaded end of the #2 carb on all XJ550, 1984-85 FJ600, XJ650 Turbo, XJ700-X, XJ750-X, and all XJ900 models using either the BS35 or BS36 series carbs. NOTE: requires a $ 25.00 core charge, refundable upon the return of an undamaged, same-model, same-carb shaft end bracket. Each:
$ 19.95 + $ 25.00 refundable core charge

HCP13680RP OEM re-plated original throttle shaft CABLE QUADRANT / END BRACKET, attaches to the threaded end of the #3 carb on all XJ550 models. This is the half-round bracket that the throttle stud cable attaches to. NOTE: requires a $ 25.00 core charge, refundable upon the return of an undamaged, same-model, same-carb shaft end bracket. Each:
$ 29.95 + $ 25.00 refundable core charge


1984-85 FJ600 models:

HCP23353RP OEM re-plated original THROTTLE SHAFT, complete with its swaged (non-removable) shaft end bracket. Fits the #1 carb on all 1984-85 FJ600 models. NOTE: requires a $ 25.00 core charge, refundable upon the return of an undamaged, same-model, same-carb shaft. Each:
$ 34.95 + $ 25.00 refundable core charge

HCP23352RP OEM re-plated original THROTTLE SHAFT, complete with its swaged (non-removable) shaft end bracket. Fits the #2 carb on all 1984-85 FJ600 models. NOTE: requires a $ 25.00 core charge, refundable upon the return of an undamaged, same-model, same-carb shaft. Each:
$ 34.95 + $ 25.00 refundable core charge

HCP233546RP OEM re-plated original THROTTLE SHAFT, complete with its swaged (non-removable) shaft end bracket. Fits the #3 carb on all 1984-85 FJ600 models. NOTE: requires a $ 25.00 core charge, refundable upon the return of an undamaged, same-model, same-carb shaft. Each:
$ 34.95 + $ 25.00 refundable core charge

HCP23351RP OEM re-plated original THROTTLE SHAFT, complete with its swaged (non-removable) shaft end bracket. Fits the #4 carb on all 1984-85 FJ600 models. NOTE: requires a $ 25.00 core charge, refundable upon the return of an undamaged, same-model, same-carb shaft. Each:
$ 34.95 + $ 25.00 refundable core charge

HCP13679RP OEM re-plated original throttle shaft END BRACKET, attaches to the threaded end of the #2 carb on all XJ550, 1984-85 FJ600, XJ650 Turbo, XJ700-X, XJ750-X, and all XJ900 models using either the BS35 or BS36 series carbs. NOTE: requires a $ 25.00 core charge, refundable upon the return of an undamaged, same-model, same-carb shaft end bracket. Each:
$ 19.95 + $ 25.00 refundable core charge

HCP14271RP OEM re-plated original throttle shaft CABLE QUADRANT / END BRACKET, attaches to the threaded end of the #3 carb on all 1984-85 FJ600 models and XJ650 Turbo models. This is the half-round bracket that the throttle stud cable attaches to. NOTE: requires a $ 25.00 core charge, refundable upon the return of an undamaged, same-model, same-carb shaft end bracket. Each:
$ 37.95 + $ 25.00 refundable core charge



XJ650 Turbo models:

HCP14266RP OEM re-plated original THROTTLE SHAFT, complete with its swaged (non-removable) shaft end bracket. Fits the #1 carb on all XJ650 Turbo models. NOTE: requires a $ 25.00 core charge, refundable upon the return of an undamaged, same-model, same-carb shaft. Each:
$ 34.95 + $ 25.00 refundable core charge

HCP14267RP OEM re-plated original THROTTLE SHAFT, complete with its swaged (non-removable) shaft end bracket. Fits the #2 carb on all XJ650 Turbo models. NOTE: requires a $ 25.00 core charge, refundable upon the return of an undamaged, same-model, same-carb shaft. Each:
$ 34.95 + $ 25.00 refundable core charge

HCP14268RP OEM re-plated original THROTTLE SHAFT, complete with its swaged (non-removable) shaft end bracket. Fits the #3 carb on all XJ650 Turbo models. NOTE: requires a $ 25.00 core charge, refundable upon the return of an undamaged, same-model, same-carb shaft. Each:
$ 34.95 + $ 25.00 refundable core charge

HCP14269RP OEM re-plated original THROTTLE SHAFT, complete with its swaged (non-removable) shaft end bracket. Fits the #4 carb on all XJ650 Turbo models. NOTE: requires a $ 25.00 core charge, refundable upon the return of an undamaged, same-model, same-carb shaft. Each:
$ 34.95 + $ 25.00 refundable core charge

HCP13679RP OEM re-plated original throttle shaft END BRACKET, attaches to the threaded end of the #2 carb on all XJ550, 1984-85 FJ600, XJ650 Turbo, XJ700-X, XJ750-X, and all XJ900 models using either the BS35 or BS36 series carbs. NOTE: requires a $ 25.00 core charge, refundable upon the return of an undamaged, same-model, same-carb shaft end bracket. Each:
$ 19.95 + $ 25.00 refundable core charge

HCP14271RP OEM re-plated original throttle shaft CABLE QUADRANT / END BRACKET, attaches to the threaded end of the #3 carb on all 1984-85 FJ600 models and XJ650 Turbo models. This is the half-round bracket that the throttle stud cable attaches to. NOTE: requires a $ 25.00 core charge, refundable upon the return of an undamaged, same-model, same-carb shaft end bracket. Each:
$ 37.95 + $ 25.00 refundable core charge




XJ700-X, XJ750-X, and XJ900RK/RL model using BS35-series carbs:

HCP18241RP OEM re-plated original THROTTLE SHAFT, complete with its swaged (non-removable) shaft end bracket. Fits the #1 carb on all XJ700-X, XJ750-X, and XJ900RK/RL models using the BS35 series carbs. NOTE: requires a $ 25.00 core charge, refundable upon the return of an undamaged, same-model, same-carb shaft. Each:
$ 29.95 + $ 25.00 refundable core charge

HCP18244RP OEM re-plated original THROTTLE SHAFT, complete with its swaged (non-removable) shaft end bracket. Fits the #2 carb on all XJ700-X, XJ750-X, and XJ900RK/RL models using the BS35 series carbs. NOTE: requires a $ 25.00 core charge, refundable upon the return of an undamaged, same-model, same-carb shaft. Each:
$ 29.95 + $ 25.00 refundable core charge

HCP18247RP OEM re-plated original THROTTLE SHAFT, complete with its swaged (non-removable) shaft end bracket with pivoting throttle cable attachment point. Fits the #3 carb on all XJ700-X and XJ750-X models. NOTE: requires a $ 25.00 core charge, refundable upon the return of an undamaged, same-model, same-carb shaft. Each:
$ 29.95 + $ 25.00 refundable core charge

HCP18287RP OEM re-plated original THROTTLE SHAFT, complete with its swaged (non-removable) shaft end bracket with pivoting throttle cable attachment point. Fits the #3 carb on all XJ900RK/RL models using the BS35 series carbs. NOTE: requires a $ 25.00 core charge, refundable upon the return of an undamaged, same-model, same-carb shaft. Each:
$ 29.95 + $ 25.00 refundable core charge

HCP18250RP OEM re-plated original THROTTLE SHAFT, complete with its swaged (non-removable) shaft end bracket. Fits the #4 carb on all XJ700-X, XJ750-X, and XJ900RK/RL models using the BS35 series carbs. NOTE: requires a $ 25.00 core charge, refundable upon the return of an undamaged, same-model, same-carb shaft. Each:
$ 29.95 + $ 25.00 refundable core charge

HCP13679RP OEM re-plated original throttle shaft END BRACKET, attaches to the threaded end of the #2 carb on all XJ550, 1984-85 FJ600, XJ650 Turbo, XJ700-X, XJ750-X, and all XJ900 models using either the BS35 or BS36 series carbs. NOTE: requires a $ 25.00 core charge, refundable upon the return of an undamaged, same-model, same-carb shaft end bracket. Each:
$ 19.95 + $ 25.00 refundable core charge

HCP18249RP OEM re-plated original throttle shaft END BRACKET, attaches to the threaded end of the #3 carb on all XJ700-X, XJ750-X, and all XJ900 models using either the BS35 or BS36 series carbs. NOTE: requires a $ 25.00 core charge, refundable upon the return of an undamaged, same-model, same-carb shaft end bracket. Each:
$ 19.95 + $ 25.00 refundable core charge



XJ900 models using BS36-series carbs:

HCP18304RP OEM re-plated original THROTTLE SHAFT, complete with its swaged (non-removable) shaft end bracket. Fits the #1 carb on all XJ900 models using the BS36 series carbs. NOTE: requires a $ 25.00 core charge, refundable upon the return of an undamaged, same-model, same-carb shaft. Each:
$ 39.95 + $ 25.00 refundable core charge

HCP18307RP OEM re-plated original THROTTLE SHAFT, complete with its swaged (non-removable) shaft end bracket. Fits the #2 carb on all XJ900 models using the BS36 series carbs. NOTE: requires a $ 25.00 core charge, refundable upon the return of an undamaged, same-model, same-carb shaft. Each:
$ 39.95 + $ 25.00 refundable core charge

HCP18308RP OEM re-plated original THROTTLE SHAFT, complete with its swaged (non-removable) shaft end bracket. Fits the #3 carb on all XJ900 models using the BS36 series carbs. NOTE: requires a $ 25.00 core charge, refundable upon the return of an undamaged, same-model, same-carb shaft. Each:
$ 39.95 + $ 25.00 refundable core charge

HCP18312RP OEM re-plated original THROTTLE SHAFT, complete with its swaged (non-removable) shaft end bracket. Fits the #4 carb on all XJ900 models using the BS36 series carbs. NOTE: requires a $ 25.00 core charge, refundable upon the return of an undamaged, same-model, same-carb shaft. Each:
$ 39.95 + $ 25.00 refundable core charge

HCP13679RP OEM re-plated original throttle shaft END BRACKET, attaches to the threaded end of the #2 carb on all XJ550, 1984-85 FJ600, XJ650 Turbo, XJ700-X, XJ750-X, and all XJ900 models using either the BS35 or BS36 series carbs. NOTE: requires a $ 25.00 core charge, refundable upon the return of an undamaged, same-model, same-carb shaft end bracket. Each:
$ 19.95 + $ 25.00 refundable core charge

HCP18249RP OEM re-plated original throttle shaft END BRACKET, attaches to the threaded end of the #3 carb on all XJ700-X, XJ750-X, and all XJ900 models using either the BS35 or BS36 series carbs. NOTE: requires a $ 25.00 core charge, refundable upon the return of an undamaged, same-model, same-carb shaft end bracket. Each:
$ 19.95 + $ 25.00 refundable core charge



XJ1100 models:

HCP18385RP OEM re-plated original THROTTLE SHAFT, complete with its swaged (non-removable) shaft end bracket. Fits the #1 carb on all XJ1100 models. NOTE: requires a $ 25.00 core charge, refundable upon the return of an undamaged, same-model, same-carb shaft. Each:
$ 34.95 + $ 25.00 refundable core charge

HCP18387RP OEM re-plated original THROTTLE SHAFT, complete with its swaged (non-removable) shaft end bracket. Fits the #2 carb on all XJ1100 models. NOTE: requires a $ 25.00 core charge, refundable upon the return of an undamaged, same-model, same-carb shaft. Each:
$ 34.95 + $ 25.00 refundable core charge

HCP18389RP OEM re-plated original THROTTLE SHAFT, complete with its swaged (non-removable) shaft end bracket. Fits the #3 carb on all XJ1100 models. NOTE: requires a $ 25.00 core charge, refundable upon the return of an undamaged, same-model, same-carb shaft. Each:
$ 34.95 + $ 25.00 refundable core charge

HCP18393RP OEM re-plated original THROTTLE SHAFT, complete with its swaged (non-removable) shaft end bracket. Fits the #4 carb on all XJ1100 models. NOTE: requires a $ 25.00 core charge, refundable upon the return of an undamaged, same-model, same-carb shaft. Each:
$ 34.95 + $ 25.00 refundable core charge

HCP18388RP OEM re-plated original throttle shaft END BRACKET, attaches to the threaded end of the #2 carb on all XJ1100 models. NOTE: requires a $ 25.00 core charge, refundable upon the return of an undamaged, same-model, same-carb shaft end bracket. Each:
$ 24.95 + $ 25.00 refundable core charge

HCP18390RP OEM re-plated original throttle shaft CABLE QUADRANT / END BRACKET, attaches to the threaded end of the #3 carb on all XJ1100 models. This is the half-round bracket that the throttle stud cable attaches to. NOTE: requires a $ 25.00 core charge, refundable upon the return of an undamaged, same-model, same-carb shaft end bracket. Each:
$ 39.95 + $ 25.00 refundable core charge



MIKUNI BUTTERFLY VALVE SYNCH SCREWS HARDWARE:

ts37) The closed position of the individual throttle plate "butterfly" valves is controlled via a fine-threaded, spring-loaded SYNCH SCREW.........these are the actual screws that are adjusted when performing a "running synch" on the engine.

http://www.xjbikes.com/forums/threads/running-sync-screw-in-or-out-that-is-the-question.75716/

Our re-plated Mikuni synch SCREWS, SPRINGS, and PLUNGER RODS allow you to re-create the original look and beauty of these carb racks. These parts are available re-plated to their correct original yellow-zinc appearance. If you need to replace any missing hardware, or just want to create a show-winning look, then you should start your shopping list here! NOTE: all synch hardware pieces are re-plated, used parts, and as such, may have minor cosmetic flaws (tooling marks, fastener marks, etc.). Most such marks will not be visible once installed. Also, all re-plated items require a refundable core charge which will be credited back to you once you return a same-model, same-type of item(s) as you purchased. Since these are re-plated used parts, we do require an exchange for your original parts so we can have a steady supply of parts to be processed and re-plated for future sales.


If the threaded holes in the throttle shaft brackets (where the synch screws are fitted) are overly tight, you may want to clean ("chase") the threads so you get a like-new feel to them:

HCP28202 Aftermarket THREAD CHASER AND CLEAN-UP TAP, made from a high-speed titanium nitride coated steel. For the following holes: Mikuni and Hitachi synch screw threads in the throttle shaft brackets, and Mikuni and Hitachi idle speed bolt threads in lower rack bracket.
$ 12.95

HCP28170 Aftermarket thread tap or EZ-out extractor TAP HANDLE, featuring offset tap handles and fully adjustable head for all m3-m12 size taps and size 0 to ½” extractors. This is the proper way to hold a tap or extractor to insure that the force is directed straight down and doesn’t “wobble” as you are cutting, reaming, or extracting. Much better than using pliers or vise-grips to hold the tool……..
$ 17.95



HCP14204 OEM throttle valve adjuster SYNCH SCREW AND SPRINGS SET, use 1 per carb on the #1, #2, and #4 carb (the #3 carb does not use a synch screw). Fits all XJ550, 1984-85 FJ600, XJ650 Turbo, XJ700-X, XJ750-X, and XJ900 models. Each set contains two springs and one screw (the thick-wire spring is for the screw; the thin-wire spring if for the bracket arms).
$ discontinued

HCP22365 OEM throttle valve adjuster SYNCH SCREW AND SPRINGS SET, use 1 per carb on the #1, #2, and #4 carb (the #3 carb does not use a synch screw). Fits all 1992-98 XJ600 Seca II models. Each set contains two springs and one screw (the thick-wire spring is for the screw; the thin-wire spring if for the bracket arms).
$ 19.95

HCP18398 OEM throttle valve adjuster SYNCH SCREW AND SPRING SET, use 1 per carb on the #1, #2, and #4 carb (the #3 carb does not use a synch screw). Fits all XJ1100 and 1980-81 XS1100 models. Each set contains one spring and screw:
$ discontinued


HCP5159RP OEM re-plated throttle valve adjuster SYNCH SCREW, use 1 per carb on the #1, #2, and #4 carb (the #3 carb does not use a synch screw). Fits all XJ550, XJ650 Turbo, all water-cooled XJ700-X and XJ750-X models, and all XJ900 (BS34- and BS35-series carbs) models. Correct yellow-zinc plated screw has the straight-slot cheese-head profile. NOTE: requires a $ 5.00 core charge, refundable upon the return of an undamaged, same-model, same-type screw.
Each:
$ 8.95 + $ 5.00 refundable core charge

HCP18380RP OEM re-plated throttle valve adjuster SYNCH SCREW, use 1 per carb on the #1, #2, and #4 carb (the #3 carb does not use a synch screw). Fits all XJ1100 carbs. Correct yellow-zinc plated screw has the straight-slot cheese-head profile. NOTE: requires a $ 5.00 core charge, refundable upon the return of an undamaged, same-model, same-type screw.
Each:
$ 9.95 + $ 5.00 refundable core charge



HCP5155 OEM throttle valve adjuster SYNCH SCREW SPRING, use 1 per carb on the #1, #2, and #4 carb (the #3 carb does not use a synch screw). Fits all XJ550, XJ650 Turbo, XJ700-X, XJ750-X, XJ900, XJ1100, and 1980-81 XS1100 models. This is the thicker-gauge wire “upper” spring only which fits over the screw. Each:
$ 11.95

HCP5155RP OEM re-plated throttle valve adjuster SYNCH SCREW SPRING, use 1 per carb on the #1, #2, and #4 carb (the #3 carb does not use a synch screw). Fits all XJ550, XJ650 Turbo, XJ700-X, XJ750-X, and XJ900 models using BS35- and BS36-series carbs. This is the thicker-gauge wire “upper” spring only which fits over the screw. Correct yellow-zinc plated spring. NOTE: requires a $ 4.00 core charge, refundable upon the return of an undamaged, same-model, same-type spring. Each:
$ 7.95 + $ 4.00 refundable core charge

HCP18381RP OEM re-plated throttle valve adjuster SYNCH SCREW SPRING, use 1 per carb on the #1, #2, and #4 carb (the #3 carb does not use a synch screw). Fits all XJ1100 and 1980-81 XS1100 models. This is the “upper” spring only which fits over the screw. Correct yellow-zinc plated spring. NOTE: requires a $ 5.00 core charge, refundable upon the return of an undamaged, same-model, same-type spring. Each:
$ 11.95 + $ 5.00 refundable core charge




HCP18382RP OEM re-plated throttle valve adjuster SYNCH PLUNGER ROD, use 1 per carb on the #1, #2, and #4 carb (the #3 carb does not use a synch screw system). Fits all XJ1100 carbs. Correct yellow-zinc plated plunger rod fits into the “lower” section of the throttle arms. Does not include the spring or the retaining circlips listed below. NOTE: requires a $ 5.00 core charge, refundable upon the return of an undamaged, same-model, same-type rod.
Each:
$ 12.95 + $ 5.00 refundable core charge

HCP18383RP OEM re-plated throttle valve adjuster PLUNGER ROD SPRING, use 1 per carb on the #1, #2, and #4 carb (the #3 carb does not use a synch screw). Fits all XJ1100 models. Correct yellow-zinc plated spring fits the HCP18382RP rod above. NOTE: requires a $ 5.00 core charge, refundable upon the return of an undamaged, same-model, same-type spring.
Each:
$ 11.95 + $ 5.00 refundable core charge


HCP23845 Aftermarket throttle valve synch plunger rod RETAINING CLIP, use 1 per carb on the #1, #2, and #4 carb (the #3 carb does not use a synch screw). Bright stainless steel material. Fits all XJ1100 and 1980-81 XS1100 models. This is the for the plunger rod on the "lower" section only. Each:
$ 3.95

HCP23846 Aftermarket throttle valve synch plunger rod RETAINING CLIP, use 1 per carb on the #1, #2, and #4 carb (the #3 carb does not use a synch screw). Yellow zinc-plated alloy steel material. Fits all XJ1100 and 1980-81 XS1100 models. This is the for the plunger rod on the "lower" section only. Each:
$ 2.95

HCP23905 Aftermarket throttle valve synch plunger rod RETAINING CLIP, use 1 per carb on the #1, #2, and #4 carb (the #3 carb does not use a synch screw). Dark grey alloy steel naterial. Fits all XJ1100 and 1980-81 XS1100 models. This is the for the plunger rod on the "lower" section only. Each:
$ 1.95



HCP5160RP OEM re-plated throttle valve adjuster SYNCH PLUNGER ROD SPRING, use 1 per carb on the #1, #2, and #4 carb (the #3 carb does not use a synch screw). Fits all XJ550, XJ650 Turbo, XJ700-X, XJ750-X, and XJ900 models using BS35- and BS36-series carbs. This is the thinner-gauge wire “lower” spring only which fits over the plunger. Correct yellow-zinc plated spring. NOTE: requires a $ 4.00 core charge, refundable upon the return of an undamaged, same-model, same-type spring. Each:
$ 11.95 + $ 4.00 refundable core charge

HCP18383RP OEM re-plated throttle valve adjuster SYNCH PLUNGER ROD SPRING, use 1 per carb on the #1, #2, and #4 carb (the #3 carb does not use a synch screw). Fits all XJ1100 and 1980-81 XS1100 models. This is the thinner-gauge wire “lower” spring only which fits over the plunger. Correct yellow-zinc plated spring. NOTE: requires a $ 5.00 core charge, refundable upon the return of an undamaged, same-model, same-type spring. Each:
$ 12.95 + $ 5.00 refundable core charge




MIKUNI IDLE MIXTURE SCREW PARTS:

NOTE: idle mixture screws are also referred to as "pilot mixture screws" or "pilot screws".

If you've never delved into the guts of your carburetor idle mixture screw port, it can sometimes be confusing. Here's the playbook for this critical area:

If we were looking at a cut-away of the carb body/idle mixture screw bore, the order of parts, from bottom to top, would be:

a) HCP895 o-ring
b) HCP896 spring seat washer
c) the tension spring
d) the idle mixture screw
e) the metal anti-tamper cap.

What is mostly confusing is the order of the o-ring versus the spring seat washer....which goes in the hole first? The answer is that the HCP895 O-ring does. The HCP896 washer primarily acts as the lower "seat" for the HCP6574 tension spring, while also keeping the o-ring firmly and securely in place.

NOTE: if you come across a stuck, seized, or otherwise so badly damaged screw that just won't come out, then here is the best advice that we can offer to deal with it:

http://xjbikes.com/forums/index.php?threads/32017



ims3) OEM and aftermarket Mikuni IDLE MIXTURE SCREW AND SCREW SETS are correct replacements for use on all original XJ550, 1984-85 FJ600, 1992-98 XJ600 Seca II, XJ650 Turbo, XJ700-X, XJ750-X, XJ900, XJ1100, and XS1100 model carbs.

HCP23241 OEM Mikuni IDLE MIXTURE SCREW, original large ”knurled-head” style used on all 1978-79 XS400-2 E/F, 1977-79 XS400 D/E/F, 1978 XS500 E, 1978-79 XS750 E/SE/F/SF, and 1978-79 XS1100 model carbs. Each:
$ 34.95

HCP23241SET4 OEM Mikuni IDLE MIXTURE SCREWS, set of 4:
$ 134.95



HCP23269 Aftermarket Mikuni IDLE MIXTURE SCREW, original large ”knurled-head” style used on all 1978-79 XS400-2 E/F, 1977-79 XS400 D/E/F, 1978 XS500 E, 1978-79 XS750 E/SE/F/SF, and 1978-79 XS1100 model carbs. Each:
$ 27.95

HCP23269SET4 Aftermarket Mikuni IDLE MIXTURE SCREWS, set of 4:
$ 99.95




HCP8397 Aftermarket Mikuni IDLE MIXTURE SCREW, machined brass ultra-fine pitch threaded pilot circuit ("idle mixture") adjustment screw is a correct replacement on all XJ550, 1986-88 FZ600, 1986-90 YX600 Radian, 1992-98 XJ600 Seca II, XJ650 Turbo, XJ700-X, XJ750-X, and XJ900RK, RL, N, FN, and F model carbs. Although slightly different in needle taper, it may also be used in the XJ1100 and 1980-81 XS1100 carbs successfully. The screw tension spring, tension spring seat washer, and o-ring are not included. Each:
$ 16.95

HCP8397SET4 Aftermarket Mikuni IDLE MIXTURE SCREWS, set of 4:
$ 59.95



HCP3745 OEM Mikuni IDLE MIXTURE SCREW SET....contains the brass idle mixture screw, spring, spring washer, and the o-ring. Original size for all XJ550, 1984-85 FJ600, 1986-88 FZ600, 1986-90 YX600 Radian, 1992-98 XJ600 Seca II, XJ650 Turbo, XJ700-X, XJ750-X, and XJ900RK, RL, N, FN, and F model carbs. NOTE: Although slightly different in needle taper, the screw contained in this kit may also be used in the XJ1100 carbs. The tension spring contained in this kit is not the correct length for the 1984-85 FJ600, XJ650 Turbo, all XJ900RK, RL, N/FN, and F models, XJ1100, and 1980-81 XS1100 models, but will work. Each:
$ 17.95

HCP3745SET4 OEM Mikuni IDLE MIXTURE SCREW SETS, set of 4:
$ 69.95



HCP11779 Aftermarket Mikuni IDLE MIXTURE SCREW SET....contains the brass idle mixture screw, spring, spring washer, and the o-ring. Original size for all XJ550, 1986-88 FZ600, 1986-90 YX600 Radian, 1992-98 XJ600 Seca II, XJ700-X, and XJ750-X model carbs. Each:
$ 22.95

HCP11779SET4 Aftermarket Mikuni IDLE MIXTURE SCREW SETS, set of 4:
$ 89.95



HCP16905 Aftermarket Mikuni IDLE MIXTURE SCREW SET....contains the brass idle mixture screw, spring, spring washer, and the o-ring. Original size for all 1984-85 FJ600, XJ650 Turbo, all XJ900RK, RL, N, FN, and F models, and XJ1100 model carbs. NOTE: Although slightly different in taper, the screw contained in this kit may successfully be used in the XJ1100 and 1980-81 XS1100 carbs. Each:
$ 21.95

HCP16905SET4 Aftermarket Mikuni IDLE MIXTURE SCREW SETS, set of 4:
$ 77.95




ddd) Aftermarket Mikuni IDLE MIXTURE SCREW O-RING.....a "must-replace" item when rebuilding your carbs. Made of long-lasting, fuel-resistant Buna-N material.

HCP895 Aftermarket Mikuni idle mixture screw O-RING, fits all XJ550, 1984-85 FJ600, 1986-88 FZ600, 1986-90 YX600 Radian, 1992-98 XJ600 Seca II, XJ650 Turbo, XJ700-X, XJ750-X, all XJ900RK, RL, N/FN, and F models, XJ1100, and 1980-81 XS1100 carbs, each:
$ 2.95

HCP895SET4 Aftermarket Mikuni idle mixture screw O-RINGS, set of 4:
$ 7.95



eee) Aftermarket Mikuni IDLE MIXTURE SCREW TENSION SPRING SEAT WASHER.....also a "must-replace" item when rebuilding your carbs. Made of long-lasting, fuel- and water-resistant 18-8 stainless steel material.

HCP896 Aftermarket Mikuni idle mixture screw tension spring SEAT WASHER, fits all XJ550, 1984-85 FJ600, 1986-88 FZ600, 1986-90 YX600 Radian, 1992-98 XJ600 Seca II, XJ650 Turbo, XJ700-X, XJ750-X, all XJ900RK, RL, N/FN, and F models, XJ1100, and 1980-81 XS1100 carbs, each:
$ 2.95

HCP896SET4 Aftermarket Mikuni idle mixture screw tension spring SEAT WASHERS, set of 4:
$ 8.95



ims6) Aftermarket carb IDLE MIXTURE SCREW TENSION SPRING, brand new reproductions exactly replace damaged, rusted, or missing originals. High-strength carbon-steel coil springs have a baked yellow-zinc plating as original.

HCP6574 Aftermarket idle mixture screw TENSION SPRING, fits Mikuni carbs used on all XJ550, 1986-88 FZ600, 1986-90 YX600 Radian, 1992-98 XJ600 Seca II, XJ700-X, and XJ750-X models, each:
$ 5.95

HCP6574SET4 Aftermarket idle mixture screw TENSION SPRINGS, set of 4:
$ 19.95



HCP8544 Aftermarket idle mixture screw TENSION SPRING, fits Mikuni carbs used on all 1984-85 FJ600, XJ650 Turbo, all XJ900RK, RL, N/FN, and F models, XJ1100, and 1980-81 XS1100 models, each:
$ 5.95

HCP8544SET4 Aftermarket idle mixture screw TENSION SPRINGS, set of 4:
$ 19.95



HCP23270 Aftermarket idle mixture screw TENSION SPRING, fits Mikuni carbs used on all 1978-79 XS1100 models, each:
$ 5.95

HCP23270SET4 Aftermarket idle mixture screw TENSION SPRINGS, set of 4:
$ 19.95




ims3) OEM and aftermarket idle mixture screw bore hole TAMPER CAPS, original plastic cap (1978-79 XS1100) or aluminum cap (all other models) exactly replaces the originals. sealing cap and has the small breather hole in the center as original. Aftermarket rubber plugs makes installation and removal a breeze, and are highly recommended as a replacement for the original style cap.


HCP23240 OEM Mikuni idle mixture screw plastic TAMPER CAP, has the slot openings in the center as original. Used on all 1978-79 XS1100 models. Each:
$ 29.95

HCP23240SET4 OEM Mikuni idle mixture screw bore hole TAMPER CAPS, set of 4:
$ 99.95



HCP3748 OEM Mikuni idle mixture screw bore hole aluminum TAMPER CAP, has the small breather hole in the center as original. Used on all XJ550, 1984-85 FJ600, 1986-88 FZ600, 1986-90 YX600 Radian, XJ650 Turbo, XJ700-X, XJ750-X, all XJ900, XJ1100, and 1980-81 XS1100 models. Each:
$ 6.00

HCP3748SET4 OEM Mikuni idle mixture screw bore hole TAMPER CAPS, set of 4:
$ 22.95



HCP7376 Aftermarket Mikuni idle mixture screw bore hole RUBBER PLUG, tapered design with mushroom head allows repeated removal and re-use. NOTE: may be a slightly loose fit on some models; if so, use a small amount of gasket or rubber adhesive to secure firmly in place (just a thin smear will do). Waterproof and dustproof design keeps the screw away from dirt and moisture, while also allowing for easy removal for tuning purposes. Fits on all XJ550, 1984-85 FJ600, 1986-88 FZ600, 1986-90 YX600 Radian, XJ650 Turbo, XJ700-X, XJ750-X, all XJ900, XJ1100, and 1980-81 XS1100 models. Each:
$ 4.50

HCP7376SET4 Aftermarket Mikuni idle mixture screw bore hole RUBBER PLUGS, set of 4:
$ 17.95



HCP14730 Aftermarket Mikuni idle mixture screw bore hole VINYL PLUG, pliable black caps allows repeated removal and re-use. NOTE: may be a slightly loose fit on some models; if so, use a small amount of gasket or rubber adhesive to secure firmly in place (just a thin smear will do). Waterproof and dustproof design keeps the screw away from dirt and moisture, while also allowing for easy removal for tuning purposes. Fits on all XJ550, 1984-85 FJ600, 1986-88 FZ600, 1986-90 YX600 Radian, XJ650 Turbo, XJ700-X, XJ750-X, all XJ900, XJ1100, and 1980-81 XS1100 models. Each:
$ 1.50

HCP14730SET4 Aftermarket Mikuni idle mixture screw bore hole VINYL PLUGS, set of 4:
$ 5.95



HCP2398 Aftermarket THREAD CHASER AND CLEAN-UP TAP, made from a high-speed uncoated steel. For use on all Mikuni idle mixture screw ports, and all Hitachi idle mixture screw ports with models using ultra-fine threaded idle mixture screws. NOTE: these threaded holes almost always need cleaning or re-tapping. Be careful when using these taps to make sure that you are cleaning and/or re-cutting the original threads, rather than any crossed/stripped threads that may be present. And beware the tiny needle tip hole at the bottom of the screw. Finally, note that the flat o-ring land (at the bottom of the screw hole) must not be damaged or gouged.......make sure that you do not run the tap in deep enough to damage that smooth land.
$ 12.95

HCP28170 Aftermarket thread tap or EZ-out extractor TAP HANDLE, featuring offset tap handles and fully adjustable head for all m3-m12 size taps and size 0 to ½” extractors. This is the proper way to hold a tap or extractor to insure that the force is directed straight down and doesn’t “wobble” as you are cutting, reaming, or extracting. Much better than using pliers or vise-grips to hold the tool……..
$ 17.95



v) IDLE MIXTURE SCREW TOOL is designed for the proper removal and fine adjustment of the idle mixture screw, preventing the destruction of the fragile straight slot head on these screws. An exact-fit blade is set at the end of a 12” long shaft, and the screw driving bit is rotated via a handle on the end of tool....this design not only eliminates stripping out the idle mixture screw slot, but also allows for very fine adjustment of the screw when fine-tuning the carbs (when using a colortune plug, etc.). The long horizontal shaft allows you to easily reach the center carbs from the outside of the carb bank, no need to lift the tank to access them. A knurled section on the shaft provides for a positive grip. A very neat little tool and it'll last a lifetime or two. Fits: all XJ550 all, all XJ650, all XJ700, all XJ750, all XJ900, XJ1100, and all 1980-81 XS1100 carbs.

HCP24870 Aftermarket idle mixture screw REMOVAL AND ADJUSTER TOOL, fits all Hitachi and all Mikuni idle mixture screws.
$ 27.95




MIKUNI IDLE SPEED SCREW PARTS:

Not to be confused with the idle MIXTURE screw listed above, the IDLE SPEED SCREW is the large knurled-head screw that lives dead center, at the bottom of the carb rack, in-between the #2 and #3 cars, and pointing straight back. This screw is used to adjust the idle speed of the engine, and has no effect on the idle mixture nor the carb (engine) "synch" settings!

Our re-plated Mikuni idle speed adjuster SCREWS, SPRINGS, and SUPPORT BRACKETS allow you to re-create the original look and beauty of these carb racks. These parts are available re-plated to their correct original silver- or yellow-zinc appearance. If you need to replace any missing hardware, or just want to create a show-winning look, then you should start your shopping list here! NOTE: all synch hardware pieces are re-plated, used parts, and as such, may have minor cosmetic flaws (tooling marks, fastener marks, etc.). Most such marks will not be visible once installed. Also, all re-plated items require a refundable core charge which will be credited back to you once you return a same-model, same-type of item(s) as you purchased. Since these are re-plated used parts, we do require an exchange for your original parts so we can have a steady supply of parts to be processed and re-plated for future sales.


If the threaded hole in the lower rack bracket (where the idle speed screw is fitted) is overly tight, you may want to clean ("chase") the threads so you get a like-new feel to them:

HCP28202 Aftermarket THREAD CHASER AND CLEAN-UP TAP, made from a high-speed titanium nitride coated steel. For the following holes: Mikuni and Hitachi synch screw threads in the throttle shaft brackets, and Mikuni and Hitachi idle speed bolt threads in lower rack bracket.
$ 12.95

HCP28170 Aftermarket thread tap or EZ-out extractor TAP HANDLE, featuring offset tap handles and fully adjustable head for all m3-m12 size taps and size 0 to ½” extractors. This is the proper way to hold a tap or extractor to insure that the force is directed straight down and doesn’t “wobble” as you are cutting, reaming, or extracting. Much better than using pliers or vise-grips to hold the tool……..
$ 17.95



HCP5161 OEM idle speed ADJUSTMENT SCREW AND SPRING SET, fits all XJ550, 1986-88 FZ600, 1986-90 YX600 Radian, XJ650 Turbo, XJ700-X, XJ750-X, and XJ900RK, RL, N/FN, and F models.
$ 42.95

HCP22655 OEM idle speed ADJUSTMENT SCREW AND SPRING SET, fits all 1992-98 XJ600 Seca II models. This set is the same as the screw and spring used on all of the following models, except these parts ahve a brigh tzinc-plated finish rather than the original yellow-zinc plating: XJ1100, 1980-81 XS1100 all models, 1980-81 XS400 G/SG/H/SH models, and 1983 XZ550RK models.
$ 24.95



HCP5161RP OEM re-plated idle speed adjuster SCREW, use 1 per carb rack in-between the #3 and #4 carbs. Fits all XJ550, 1986-88 FZ600, 1986-90 YX600 Radian, XJ650 Turbo, all water-cooled XJ700-X and XJ750-X models, and all XJ900 models (using the BS35- or BS36-series carbs). Correct yellow-zinc plated screw has the large knurled head. NOTE: requires a $ 10.00 core charge, refundable upon the return of an undamaged, same-model, same-type screw. Each:
$ 29.95 + $ 10.00 refundable core charge

HCP5162RP OEM re-plated idle speed adjuster IDLE SPEED SCREW SPRING, use 1 per carb rack on the speed adjuster screw. Fits all XJ550, 1986-88 FZ600, 1986-90 YX600 Radian, XJ650 Turbo, all water-cooled XJ700-X and XJ750-X models, and all XJ900 models (using the BS35- or BS36-series carbs). Correct yellow-zinc plated spring. NOTE: requires a $ 5.00 core charge, refundable upon the return of an undamaged, same-model, same-type spring. Each:
$ 12.95 + $ 5.00 refundable core charge


HCP9808RP OEM re-plated idle speed adjuster SCREW, use 1 per carb rack in-between the #3 and #4 carbs. Fits all XJ1100 models. Correct yellow-zinc plated “shorty” screw has the large knurled head. b]NOTE[/b]: requires a $ 15.00 core charge, refundable upon the return of an undamaged, same-model, same-type screw. Each:
$ 34.95 + $ 15.00 refundable core charge

HCP9812RP OEM re-plated idle speed adjuster IDLE SPEED SCREW SPRING, use 1 per carb rack on the speed adjuster screw. Fits all XJ1100 models. Correct yellow-zinc plated spring fits the HCP9808RP screw above. NOTE: requires a $ 5.00 core charge, refundable upon the return of an undamaged, same-model, same-type spring.
Each:
$ 14.95 + $ 5.00 refundable core charge



HCP14257RP OEM re-plated carb lower rack lateral bracket IDLE SPEED BOLT EXTENSION, this bracket carries the idle speed adjuster bolt. Beautiful silver-zinc plating brings the bottom side of these carbs to life. Fits all BS28-series carbs as used on all XJ550, XJ650 Turbo, XJ700-X, XJ750-X, and all XJ900 (BS35 and BS36 series) carbs. NOTE: requires a $ 25.00 core charge, refundable upon the return of an undamaged, same-model, same-type bracket.
$ 29.95 + $ 25.00 refundable core charge

HCP18260RP OEM re-plated carb lower rack lateral bracket IDLE SPEED BOLT EXTENSION, this bracket carries the idle speed adjuster bolt. Beautiful silver-zinc plating brings the bottom side of these carbs to life. Fits all BS28-series carbs as used on all XJ1100 (BS34) models. NOTE: requires a $ 25.00 core charge, refundable upon the return of an undamaged, same-model, same-type bracket.
$ 39.95 + $ 25.00 refundable core charge



HCP9848 Aftermarket Mikuni idle speed screw rubber GROMMET, fits into the lower carb rack bracket opening where the idle speed screw enters the bracket. This replacement grommet is quite a bit larger than the stock grommet, but fits and works properly. Use a little bit of silicone grease on the screw's shaft where it passes through this grommet and it will be silky-smooth in operation. Fits all XJ550, 1986-88 FZ600, 1986-90 YX600 Radian, XJ650 Turbo, XJ700-X, XJ750-X, and XJ900RK models
$ 1.95


HCP4024 Aftermarket Mikuni carb idle speed screw WASHER, not an original part, but if you use a set of these thin flat plastic shimming washers in-between the spring and the screw, and between the spring and the bracket (in other words, on either end of the spring), it greatly reduces the friction between the two and makes the idle screw silky-smooth to adjust! Fits all XJ550, 1986-88 FZ600, 1986-90 YX600 Radian, XJ650 Turbo, XJ700-X, XJ750-X, XJ900RK, and XJ1100 models Each:
$ 1.95

HCP4024SET2 Aftermarket Hitachi carb idle speed screw WASHERS, set of 2:
$ 2.95



HCP60 OEM Mikuni idle speed screw bracket mounting SCREW, mounts the idle speed screw bracket to the lower carb rack bracket, fits all XJ550, 1984-85 FJ600, XJ700-X, XJ750-X, and XJ900 models. Use 1 per bracket.
$ 2.95

HCP910 Aftermarket Mikuni idle speed screw bracket mounting SCREW, mounts the idle speed screw bracket to the lower carb rack bracket, fits all XJ550, 1984-85 FJ600, XJ700-X, XJ750-X, and XJ900 models. Zinc-plated alloy steel, phillips-drive screw. Use 1 per bracket.
$ 1.00

HCP62 Aftermarket Mikuni idle speed screw bracket mounting SCREW, mounts the idle speed screw bracket to the lower carb rack bracket, fits all XJ550, 1984-85 FJ600, XJ700-X, XJ750-X, and XJ900 models. 18-8 stainless steel, phillips-drive screw. Use 1 per bracket.
$ 1.50

HCP308 Aftermarket Mikuni idle speed screw bracket mounting SCREW, mounts the idle speed screw bracket to the lower carb rack bracket, fits all XJ550, 1984-85 FJ600, XJ700-X, XJ750-X, and XJ900 models. 18-8 stainless steel, buttonhead, allen-drive screw. Use 1 per bracket.
$ 1.25

HCP310 Aftermarket Mikuni idle speed screw bracket mounting SCREW, mounts the idle speed screw bracket to the lower carb rack bracket, fits all XJ550, 1984-85 FJ600, XJ700-X, XJ750-X, and XJ900 models. 18-8 stainless steel, bright plated, socket head, allen-drive screw. Use 1 per bracket.
$ 1.50

HCP64 Aftermarket Mikuni idle speed screw bracket mounting SCREW, mounts the idle speed screw bracket to the lower carb rack bracket, fits all XJ550, 1984-85 FJ600, XJ700-X, XJ750-X, and XJ900 models. 18-8 stainless steel, black plated, socket head, allen-drive screw. Use 1 per bracket.
$ 1.00



HCP9180 OEM Mikuni idle speed screw bracket mounting SCREW, mounts the idle speed screw bracket to the lower carb rack bracket, fits all XJ650 Turbo models. Use 1 per bracket.
$ 1.95

HCP21368 Aftermarket Mikuni idle speed screw bracket mounting SCREW, mounts the idle speed screw bracket to the lower carb rack bracket, fits all XJ650 Turbo models. Zinc-plated alloy steel, panhead phillps-drive style. Use 1 per bracket.
$ 1.00

HCP5889 Aftermarket Mikuni idle speed screw bracket mounting SCREW, mounts the idle speed screw bracket to the lower carb rack bracket, fits all XJ650 Turbo models. 18-8 stainless steel, panhead phillps-drive style. Use 1 per bracket.
$ 1.25

HCP21369 Aftermarket Mikuni idle speed screw bracket mounting SCREW, mounts the idle speed screw bracket to the lower carb rack bracket, fits all XJ650 Turbo models. Black-oxide coated 18-8 stainless steel, panhead phillps-drive style. Use 1 per bracket.
$ 1.95

HCP21372 Aftermarket Mikuni idle speed screw bracket mounting SCREW, mounts the idle speed screw bracket to the lower carb rack bracket, fits all XJ650 Turbo models. 18-8 stainless steel, button head, hex-drive style. Use 1 per bracket.
$ 1.25

HCP21370 Aftermarket Mikuni idle speed screw bracket mounting SCREW, mounts the idle speed screw bracket to the lower carb rack bracket, fits all XJ650 Turbo models. 18-8 stainless steel, socket head, hex-drive style. Use 1 per bracket.
$ 1.00

HCP21371 Aftermarket Mikuni idle speed screw bracket mounting SCREW, mounts the idle speed screw bracket to the lower carb rack bracket, fits all XJ650 Turbo models. Black-oxide coated 18-8 stainless steel, socket head, hex-drive style. Use 1 per bracket.
$ 1.00



HCP1030 OEM Mikuni idle speed screw bracket mounting SCREW, dark finish alloy steel, panhead, phillips drive. Mounts the idle speed screw bracket to the lower carb rack bracket, fits all XJ1100 models. Use 1 per bracket.
$ 1.95

HCP2922 Aftermarket Mikuni idle speed screw bracket mounting SCREW, mounts the idle speed screw bracket to the lower carb rack bracket, fits all XJ1100 models, zinc-plated alloy steel, natural finish, panhead phillips-drive, each:
$ 1.50

HCP21362 Aftermarket Mikuni idle speed screw bracket mounting SCREW, mounts the idle speed screw bracket to the lower carb rack bracket, fits all XJ1100 models, 18/8 stainless steel, bright finish, panhead phillips-drive, each:
$ 1.50

HCP6714 Aftermarket Mikuni idle speed screw bracket mounting SCREW, mounts the idle speed screw bracket to the lower carb rack bracket, fits all XJ1100 models, button head hex-drive, 18-8 stainless steel, bright finish, each:
$ 1.50

HCP6715 Aftermarket Mikuni idle speed screw bracket mounting SCREW, mounts the idle speed screw bracket to the lower carb rack bracket, fits all XJ1100 models, socket head, hex-drive, black-oxide coated alloy steel, each:
$ 1.25

HCP6716 Aftermarket Mikuni idle speed screw bracket mounting SCREW, mounts the idle speed screw bracket to the lower carb rack bracket, fits all XJ1100 models, socket head, hex-drive, 18-8 stainless steel, bright finish, each:
$ 1.50



HCP55 OEM Mikuni idle speed screw bracket mounting screw LOCK WASHER, use with the idle speed bracket screws listed above. Fits all XJ550, 1984-85 FJ600, XJ700-X, XJ750-X, and XJ900 models. Zinc-plated alloy steel. Use 1 per bracket.
$ 1.95

HCP913 Aftermarket Mikuni idle speed screw bracket mounting screw LOCK WASHER, use with the idle speed bracket screws listed above. Fits all XJ550, 1984-85 FJ600, XJ700-X, XJ750-X, and XJ900 models. Zinc-plated alloy steel. Use 1 per bracket.
$ 1.00

HCP57 Aftermarket Mikuni idle speed screw bracket mounting screw LOCK WASHER, use with the idle speed bracket screws listed above. Fits all XJ550, 1984-85 FJ600, XJ700-X, XJ750-X, and XJ900 models. 18-8 stainless steel. Use 1 per bracket.
$ 1.00

HCP59 Aftermarket Mikuni idle speed screw bracket mounting screw LOCK WASHER, use with the idle speed bracket screws listed above. Fits all XJ550, 1984-85 FJ600, XJ700-X, XJ750-X, and XJ900 models. Black oxide-coated alloy steel. Use 1 per bracket.
$ 1.00



MIKUNI CARB STARTER - ENRICHMENT CIRCUIT - CHOKE SYSTEM PARTS:

The starter (choke) circuit is prone to a number of problems, from clogged passages in the starter jet (down in the bowl) to worn or fractured plunger valves and their related hardware. We've got some of those hard-to-find parts to properly restore your system.


Mikuni Starter - Enrichment (“Choke”) Circuit Plunger Valves:

The starter circuit PLUNGER VALVES are the solid brass needle-tip valve that actually shuts off or opens the enrichment circuit. Worn tips or fractured heads renders these valves useless. These valves are SPRING-loaded, and retained in the starter valve port in the carb body by a threaded, hollow-center brass SEAT, which is then surrounded by a small rubber DUST CAP. In addition, XJ650 Turbo models used a rubber O-RING to provide an air-tight seal at the cover-to-carb body mating surface.

If the threaded seat in the carb body where the plunger shaft brass seat screws into has been injured, or if you want to restore the threads to their like-new condition, these thread chaser taps are what you'll need:

HCP2400 Aftermarket THREAD CHASER AND CLEAN-UP TAP, made from a high-speed titanium nitride coated steel. For the following holes: Hitachi float valve needle seat screw hole, and Mikuni starter / enrichment circuit (“choke”) brass plunger seat bore hole on all XJ550, FJ600, FZ600, YX600, XJ600, XJ650 Turbo, XJ700-X, and XJ750-X carbs.
$ 17.95

HCP28133 THREAD CHASER AND CLEAN-UP TAP, made from a high-speed titanium nitride coated steel. For the following holes: Mikuni starter / enrichment circuit (“choke”) brass plunger seat bore hole on all XJ900, XJ1100, and XS1100 carbs.
$ 23.95

HCP28170 Aftermarket thread tap or EZ-out extractor TAP HANDLE, featuring offset tap handles and fully adjustable head for all m3-m12 size taps and size 0 to ½” extractors. This is the proper way to hold a tap or extractor to insure that the force is directed straight down and doesn’t “wobble” as you are cutting, reaming, or extracting. Much better than using pliers or vise-grips to hold the tool……..
$ 17.95



HCP12013 Aftermarket Mikuni starter plunger valve seat DUST CAP, rubber seat cinches to the screw-in brass plunger seats and provides a dust- and air-tight seal that the plunger valves slides through. Most originals are hardened and inflexible due to heat saturation and no longer provide a good (or any!) sealing at all. Fits all XJ550, 1984-85 FJ600, 1986-88 FZ600, 1986-90 YX600 Radian, 1992-98 XJ600 Seca II, XJ650 Turbo, and XJ700-X, XJ750-X carbs. NOTE: some later-issue factory replacement (parts counter) choke plungers for the XJ550 carbs had a THINNER shaft than the original plunger valves.....the originals were 4.80mm O.D., while the "later" over-the-counter replacements were only about 4.50mm O.D. These replacement rubber caps are designed to fit the original (and our repro) 4.80mm plunger valves; on the skinnier valves, it will allow a vacuum leak leak to occur. We do not have the correct vac caps for the thinner 4.50mm O.D. plunger valves. Each:
$ 6.95

HCP12013SET4 Aftermarket Mikuni starter plunger valve seat DUST CAPS, set of 4:
$ 24.95



HCP10520 Aftermarket Mikuni starter plunger valve seat DUST CAPS, rubber seat cinches to the screw-in brass plunger seats and provides a dust- and air-tight seal that the plunger valves slides through. Most originals are hardened and inflexible due to heat saturation and no longer provide a good (or any!) sealing at all. Fits all XJ900, XJ1100, and all 1980-81 XS1100 carbs. Each:
$ 6.95

HCP10520SET4 Aftermarket Mikuni starter plunger valve seat DUST CAP, set of 4:
$ 24.95


HCP12014 Aftermarket Mikuni starter plunger valve seat DUST CAP, rubber seat cinches to the screw-in brass plunger seats and provides a dust- and air-tight seal that the plunger valves slides through. Most originals are hardened and inflexible due to heat saturation and no longer provide a good (or any!) sealing at all. Fits all XJ900, XJ1100, and all 1980-81 XS1100 carbs. Each:
$ 4.95

HCP12014SET4 Aftermarket Mikuni starter plunger valve seat DUST CAPS, set of 4:
$ 18.95



HCP9846 Aftermarket Mikuni starter plunger valve seat O-RING, correct for the XJ650 Turbo models (o-rings were only used in this area on Turbo carbs). Fits just under the head of the threaded plunger shaft cap. Each:
$ 1.50

HCP9846SET4 Aftermarket starter plunger valve seat O-RINGS, set of 4:
$ 5.00



HCP5197 OEM Mikuni brass needle-tipped STARTER PLUNGER VALVE, fits all XJ550, 1986-88 FZ600, and 1986-90 YX600 Radian carbs carbs. This is an original Yamaha "service-replacement" part which has a reduced shaft OD of only 4.50mm, and will not properly accept the original nor reproduction HCP12013 dust caps above. Each:
$ 34.95

HCP5197SET4 OEM Mikuni brass needle-tipped STARTER PLUNGER VALVES, set of 4:
$ 134.95


HCP17581 Aftermarket Mikuni brass needle-tipped STARTER PLUNGER VALVE, fits all XJ550 model carbs. This is a correct reproduction of the original with the 4.80mm OD shaft, and will properly accept the HCP12013 dust caps above. This shaft can also be used as a replacement for the under-sized HCP5197 plunger valve on all 1986-88 FZ600 and 1986-90 YX600 Radian carbs. Each:
$ 21.95

HCP17581SET4 Aftermarket Mikuni brass needle-tipped STARTER PLUNGER VALVES, set of 4:
$ 79.95



HCP22376 Aftermarket Mikuni brass needle-tipped STARTER PLUNGER VALVE SET, fits all 1992-98 XJ600 Seca II models, each set contains the plunger valve, the spring, the screw-in brass seat, and the rubber dust cap. Each:
$ 59.95

HCP22376SET4 Aftermarket Mikuni brass needle-tipped STARTER PLUNGER VALVE SETS, set of 4:
$ 229.95


HCP15599 Aftermarket Mikuni brass needle-tipped STARTER PLUNGER VALVE, fits all 1984-85 FJ600, all XJ650 Turbo, XJ700-X, and XJ750-X carbs, each:
$ 21.95

HCP15599SET4 Aftermarket Mikuni brass needle-tipped STARTER PLUNGER VALVES, set fo 4:
$ 79.95


HCP17582 Aftermarket Mikuni brass needle-tipped STARTER PLUNGER VALVE, fits all XJ900, XJ1100, and all XS1100 carbs, each:
$ 21.95

HCP17582SET4 Aftermarket Mikuni brass needle-tipped STARTER PLUNGER VALVES, set of 4:
$ 79.95



HCP5198 OEM Mikuni brass starter plunger valve SPRING, fits all XJ550, 1984-85 FJ600, 1986-88 FZ600, 1986-90 YX600 Radian, XJ650 Turbo, XJ700-X, XJ750-X, and all 1978-79 XS1100 models, each:
$ 8.95


HCP17583 Aftermarket Mikuni brass starter plunger valve SPRING, fits all XJ550, 1984-85 FJ600, 1986-88 FZ600, 1986-90 YX600 Radian, XJ650 Turbo, XJ700-X, XJ750-X, and all 1978-79 XS1100 models, each:
$ 5.95

HCP17583SET4 Aftermarket Mikuni brass starter plunger valve SPRINGS, set of 4:
$ 19.95


HCP17584 Aftermarket Mikuni brass starter plunger valve SPRING, fits all XJ900, XJ1100, and all 1980-81 XS1100 models, each:
$ 5.95

HCP17584SET4 Aftermarket Mikuni brass starter plunger valve SPRING, set of 4:
$ 19.95



Mikuni Starter - Enrichment (“Choke”) Circuit Shaft, Brackets, and Springs:

Our re-plated Mikuni carb starter - enrichment (“choke”) circuit individual SHAFTS AND BRACKETS allow you to re-create the original look and beauty of these carb racks. These parts are available re-plated to their correct original silver- or yellow-zinc appearance. If you need to replace any missing hardware, or just want to create a show-winning look, then you should start your shopping list here! NOTE: all starter hardware pieces are re-plated, used parts, and as such, may have minor cosmetic flaws (tooling marks, fastener marks, etc.). Most such marks will not be visible once installed. Also, all re-plated items require a refundable core charge which will be credited back to you once you return a same-model, same-type of item(s) as you purchased. Since these are re-plated used parts, we do require an exchange for your original parts so we can have a steady supply of parts to be processed and re-plated for future sales.


HCP5156RP OEM re-plated carb starter - enrichment (“choke”) circuit ACTUATING SHAFT, long round shaft that carries the choke plunger lifter “finger” brackets. Beautiful silver-zinc plating brings the top side of these carbs to life. Fits all BS28-series carbs as used on all XJ550 Maxim, Seca, and XJ550 Euro models. NOTE: requires a $ 20.00 core charge, refundable upon the return of an undamaged, same-model, same-type shaft.
$ 29.95 + $ 20.00 refundable core charge

HCP14203RP OEM re-plated carb starter - enrichment (“choke”) circuit ACTUATING SHAFT, long round shaft that carries the choke plunger lifter “finger” brackets. Beautiful silver-zinc plating brings the top side of these carbs to life. Fits all BS30-series carbs as used on all XJ650 Turbo models. NOTE: requires a $ 20.00 core charge, refundable upon the return of an undamaged, same-model, same-type shaft.
$ 39.95 + $ 20.00 refundable core charge

HCP17755RP OEM re-plated carb starter - enrichment (“choke”) circuit ACTUATING SHAFT, long round shaft that carries the choke plunger lifter “finger” brackets. Beautiful silver-zinc plating brings the top side of these carbs to life. Fits all BS33-series carbs as used on all water-cooled XJ700-X and XJ750-X models. NOTE: requires a $ 20.00 core charge, refundable upon the return of an undamaged, same-model, same-type shaft.
$ 39.95 + $ 20.00 refundable core charge

HCP17756RP OEM re-plated carb starter - enrichment (“choke”) circuit ACTUATING SHAFT, long round shaft that carries the choke plunger lifter “finger” brackets. Beautiful silver-zinc plating brings the top side of these carbs to life. Fits all BS35- and BS36-series carbs as used on XJ900 models and BS34 carbs used on XJ1100 models. NOTE: requires a $ 20.00 core charge, refundable upon the return of an undamaged, same-model, same-type shaft.
$ 39.95 + $ 20.00 refundable core charge



HCP5163RP-SET4 OEM re-plated carb starter - enrichment (“choke”) circuit PLUNGER LIFTER BRACKETS, set of 4 of the choke plunger-lifter “finger” brackets. Beautiful silver-zinc plating brings the top side of these carbs to life. Fits all BS28-series carbs as used on all XJ550 Maxim, Seca, and XJ550 Euro models. NOTE: requires a $ 20.00 core charge, refundable upon the return of an undamaged, same-model, same-type set of lifter brackets.
$ 29.95 + $ 20.00 refundable core charge


HCP14200RP OEM re-plated carb starter - enrichment (“choke”) circuit PLUNGER LIFTER BRACKET, these are the choke plunger-lifter “finger” brackets used on the #1 and #2 carbs. Beautiful silver-zinc plating brings the top side of these carbs to life. Fits all BS30-series carbs as used on all XJ650 Turbo, and on BS33-series carbs used on all water-cooled XJ700-X and XJ750-X models. Each. NOTE: requires a $ 15.00 core charge, refundable upon the return of an undamaged, same-model, same-type set of lifter bracket.
$ 15.95 + $ 15.00 refundable core charge

HCP14201RP OEM re-plated carb starter - enrichment (“choke”) circuit PLUNGER LIFTER BRACKET, this is the choke plunger-lifter “finger” brackets used on the #3 carb. Beautiful silver-zinc plating brings the top side of these carbs to life. Fits all BS30-series carbs as used on all XJ650 Turbo models. NOTE: requires a $ 15.00 core charge, refundable upon the return of an undamaged, same-model, same-type set of lifter bracket.
$ 19.95 + $ 15.00 refundable core charge

HCP16791RP OEM re-plated carb starter - enrichment (“choke”) circuit PLUNGER LIFTER BRACKET, this is the choke plunger-lifter “finger” brackets used on the #3 carb. Beautiful silver-zinc plating brings the top side of these carbs to life. Fits all BS33-series carbs used on all water-cooled XJ700-X and XJ750-X models. NOTE: requires a $ 15.00 core charge, refundable upon the return of an undamaged, same-model, same-type set of lifter bracket.
$ 19.95 + $ 15.00 refundable core charge

HCP14202RP OEM re-plated carb starter - enrichment (“choke”) circuit PLUNGER LIFTER BRACKET, this is the choke plunger-lifter “finger” brackets used on the #4 carb. Beautiful silver-zinc plating brings the top side of these carbs to life. Fits all BS30-series carbs as used on all XJ650 Turbo, and on BS33-series carbs used on all water-cooled XJ700-X and XJ750-X models. NOTE: requires a $ 15.00 core charge, refundable upon the return of an undamaged, same-model, same-type set of lifter bracket.
$ 15.95 + $ 15.00 refundable core charge


HCP16792RP-SET4 OEM re-plated carb starter - enrichment (“choke”) circuit PLUNGER LIFTER BRACKETS, set of 4 of the choke plunger-lifter “finger” brackets. Beautiful silver-zinc plating brings the top side of these carbs to life. Fits all BS35- and BS36-series carbs as used on XJ900 models and BS34 carbs used on XJ1100 models. NOTE: requires a $ 30.00 core charge, refundable upon the return of an undamaged, same-model, same-type set of lifter brackets.
$ 39.95 + $ 30.00 refundable core charge

HCP16794RP OEM re-plated carb starter - enrichment (“choke”) circuit SHAFT ACTUATOR BRACKET, this is the choke shaft actuator bracket used at the outer end of that shaft (next to the #4 carb). Beautiful silver-zinc plating brings the top side of these carbs to life. Fits all BS35- and BS36-series carbs as used on XJ900 models and BS34 carbs used on XJ1100 models. NOTE: requires a $ 15.00 core charge, refundable upon the return of an undamaged, same-model, same-type set of bracket.
$ 19.95 + $ 15.00 refundable core charge



HCP5157RP OEM Mikuni starter/choke shaft RETURN SPRING, fits all XJ550 models. Beautiful bright silver-zinc plating brings the top side of these carbs to life. NOTE: requires a $ 15.00 core charge, refundable upon the return of an undamaged, same-model, same-type spring.
$ 19.95 + $ 15.00 refundable core charge

HCP22374 OEM Mikuni starter/choke shaft pull handle RETURN SPRING, fits all 1992-98 XJ600 Seca II models. Each:
$ 11.95



Mikuni Starter - Enrichment (“Choke”) Circuit Fasteners:

xx4) Aftermarket Mikuni Starter-Enrichment Circuit Arm-to-Shaft SET SCREW. These replacement screws are used to retain the starter lever "finger" bracket to the starter circuit shaft. Use 1 per carb, 4 of these screws per rack on all XJ550, 1984-85 FJ600, 1992-98 XJ600 Seca II, XJ650 Turbo, XJ700-X, XJ750-X, and XJ900RK models. XJ1100 and XS1100 models use a total of 5 screws per rack.

NOTE: originally, these screws were configured as follows:

XJ550 all models used a panhead, phillips drive cone (pointed) tip set screw. This style screw is not currently available, and the HCP21375, HCP299, or HCP300 screws listed below are the recommended replacements.

XJ650 Turbo, XJ900, XJ1100, and XS1100 models used a straight slot, cone (pointed) tip set screw. This style screw is the HCP21375 or HCP21376, and similar to the HCP299 and HCP300 screws listed below, with the main difference being that while the original screws used a straight blade slot, the HCP299 and HCP300 screws below employ a hex-drive.

1984-85 FJ600, 1992-98 XJ600 Seca II, XJ700-X, and XJ750-X models used a panhead, phillips drive dog-point (blunt tip) set screw. This style screw is not currently available, although the HCP6828 screw below is very similar, with the main difference being that original screws used a phillips-drive head, while the replacement screws below employ a hex-drive.

ALL models may use the HCP299, HCP300, HCP21375, HCP21376, or HCP6828 hex-drive set screws as a suitable replacement.



HCP21376 Aftermarket Mikuni enrichment circuit lever arm-to-shaft SET SCREW, original straight-slot design, zinc-plated alloy steel. Slightly shorter than stock. Correct style for all XJ650 Turbo, XJ900, XJ1100, and XS1100 carbs, but will serve as suitable replacements for all XJ550, 1984-85 FJ600, 1992-98 XJ600 Seca II, XJ700-X, and XJ750-X models. Each:
$ 1.95

HCP21376SET4 Aftermarket Mikuni enrichment circuit lever arm-to-shaft SET SCREWS, set of 4:
$ 7.50

HCP21376SET5 Aftermarket Mikuni enrichment circuit lever arm-to-shaft SET SCREWS, set of 5:
$ 8.95



HCP21375 Aftermarket Mikuni enrichment circuit lever arm-to-shaft SET SCREW, original straight-slot design, 18-8 stainless steel. Slightly shorter than stock. Correct style for all XJ650 Turbo, XJ900, XJ1100, and XS1100 carbs, but will serve as suitable replacements for all XJ550, 1984-85 FJ600, 1992-98 XJ600 Seca II, XJ700-X, and XJ750-X models. Each:
$ 1.95

HCP21375SET4 Aftermarket Mikuni enrichment circuit lever arm-to-shaft SET SCREWS, set of 4:
$ 7.50

HCP21375SET5 Aftermarket Mikuni enrichment circuit lever arm-to-shaft SET SCREWS, set of 5:
$ 8.95



HCP299 Aftermarket Mikuni enrichment circuit lever arm-to-shaft cone-point SET SCREW, hex-key drive, black oxide coated alloy steel, slightly longer than stock. Correct style for all XJ650 Turbo, XJ900, XJ1100, and XS1100 carbs, but will serve as suitable replacements for all XJ550, 1984-85 FJ600, 1992-98 XJ600 Seca II, XJ700-X, and XJ750-X models. Each:
$ 1.95

HCP299SET4 Aftermarket Mikuni enrichment circuit lever arm-to-shaft SET SCREWS, set of 4:
$ 6.95

HCP299SET5 Aftermarket Mikuni enrichment circuit lever arm-to-shaft SET SCREWS, set of 5:
$ 7.95



HCP300 Aftermarket Mikuni enrichment circuit lever arm-to-shaft cone-point SET SCREW, hex-key drive, 18-8 stainless steel, slightly longer than stock. Correct style for all XJ650 Turbo, XJ900, XJ1100, and XS1100 carbs, but will serve as suitable replacements for all XJ550, 1984-85 FJ600, 1992-98 XJ600 Seca II, XJ700-X, and XJ750-X models. Each:
$ 1.95

HCP300SET4 Aftermarket Mikuni enrichment circuit lever arm-to-shaft SET SCREWS, set of 4:
$ 6.95

HCP300SET5 Aftermarket Mikuni enrichment circuit lever arm-to-shaft SET SCREWS, set of 5:
$ 7.95



HCP6828 Aftermarket Mikuni enrichment circuit lever arm-to-shaft blunt point SET SCREW, hex-key drive, 18-8 stainless steel, slightly longer than stock. Correct style for all 1984-85 FJ600, XJ700-X, and XJ750-X models, but will serve as suitable replacements for all XJ550, 1992-98 XJ600 Seca II, XJ650 Turbo, XJ900, XJ1100, and XS1100 models. Each:
$ 2.95

HCP6828SET4 Aftermarket Mikuni enrichment circuit lever arm-to-shaft SET SCREWS, set of 4:
$ 10.95

HCP6828SET5 Aftermarket Mikuni enrichment circuit lever arm-to-shaft SET SCREWS, set of 5:
$ 12.95



HCP4561 OEM Mikuni carb choke cable clamp bracket MOUNTING SCREW, alloy steel, panhead, phillips-drive. Secures the choke cable retaining clamp to the bracket located on the #1 carb hat. For use on all XJ550 models only, 1 per bike. Each.
$ 2.95

HCP911 Aftermarket Mikuni carb choke cable clamp bracket MOUNTING SCREW, zinc-plated alloy steel, panhead, phillips-drive. Secures the choke cable retaining clamp to the bracket located on the #1 carb hat. For use on all XJ550 models only, 1 per bike. Each:
$ 1.95

HCP1362 Aftermarket Mikuni carb choke cable clamp bracket MOUNTING SCREW, yellow cad-plated alloy steel, panhead, phillips-drive, with an integral lockwasher. Secures the choke cable retaining clamp to the bracket located on the #1 carb hat. For use on all XJ550 models only, 1 per bike. Each:
$ 1.95

HCP307 Aftermarket Mikuni carb choke cable clamp bracket MOUNTING SCREW, 18-8 stainless steel, panhead, phillips-drive. Secures the choke cable retaining clamp to the bracket located on the #1 carb hat. For use on all XJ550 models only, 1 per bike. Each:
$ 1.50

HCP24040 Aftermarket Mikuni carb choke cable clamp bracket MOUNTING SCREW, alloy steel, panhead, phillips-drive. Secures the choke cable retaining clamp to the bracket located on the #1 carb hat. For use on all XJ550 models only, 1 per bike. Each.
$ 1.95

HCP309 Aftermarket Mikuni carb choke cable clamp bracket MOUNTING SCREW, 18-8 stainless steel, button-head, hex-drive style. Secures the choke cable retaining clamp to the bracket located on the #1 carb hat. For use on all XJ550 models only, 1 per bike. Each:
$ 1.00

HCP311 Aftermarket Mikuni carb choke cable clamp bracket MOUNTING SCREW, 18-8 stainless steel, socket-head, hex-drive style. Secures the choke cable retaining clamp to the bracket located on the #1 carb hat. For use on all XJ550 models only, 1 per bike. Each:
$ 1.00

HCP312 Aftermarket Mikuni carb choke cable clamp bracket MOUNTING SCREW, black oxide-coated steel, socket-head, hex-drive style. Secures the choke cable retaining clamp to the bracket located on the #1 carb hat. For use on all XJ550 models only, 1 per bike. Each:
$ 1.50



HCP55 OEM Mikuni carb choke cable clamp bracket screw LOCK WASHER, zinc-plated alloy steel. For use on all XJ550 models only, Use 1 per bike, each:
$ 1.95

HCP913 Aftermarket Mikuni carb choke cable clamp bracket screw LOCK WASHER, zinc-plated alloy steel. For use on all XJ550 models only, 1 per bike, each.
$ 1.00

HCP57 Aftermarket Mikuni carb choke cable clamp bracket screw LOCK WASHER, 18-8 stainless steel. For use on all XJ550 models only, 1 per bike, each.
$ 1.00

HCP59 Aftermarket Mikuni carb choke cable clamp bracket screw LOCK WASHER, black oxide coated alloy steel. For use on all XJ550 models only, 1 per bike, each.
$ 1.00



MIKUNI CARB FUEL SUPPLY AND BOWL OVERFLOW T-FITTINGS, CONNECTOR TUBES, AND O-RINGS:

mtz1) OEM and aftermarket Mikuni fuel inlet T-FITTING AND CONNECTOR SUPPLY TUBES. The swiveling plastic t-fitting is used as the intake port from the petcock and "splits" the fuel flow to the left and right sides of the carb banks, while the aluminum fuel connector pipes are used to connect the outer carbs to the center carbs for incoming fuel supply. The original inlet T-fitting was made of a plastic-coated aluminum, and was equipped with built in anti-leak "ribs" where they enter the carb bodies, while the aluminum connector tubes use separate o-rings (listed further below) to provide a leak-proof connection into the carb bodies.

Our aftermarket replacement T-fittings are made from brass, and have machined grooves to accept actual rubber o-rings, making them re-usable forever.


HCP5166 OEM plastic-coated aluminum fuel inlet T-FITTING, use 1 on all XJ550, 1986-88 FZ600, and 1986-90 YX600 Radian models, in-between the #2 and #3 carbs.
$ 56.95

HCP22372 OEM plastic fuel inlet T-FITTING, use 1 on all 1992-98 XJ600 Seca II models, in-between the #2 and #3 carbs. Does not include the rubber “sleeve” seals on each side arm (into the carb body).
$ 59.95

HCP9865 OEM plastic-coated aluminum fuel inlet T-FITTING, use 1 on all 1984-85 FJ600, XJ700-X, XJ750-X, XJ900 N, F, FN (BS36 carbs), and 1978-79 XS1100 models, fits in-between the #2 and #3 carbs.
$ 59.95


HCP16282 Aftermarket brass fuel inlet T-FITTING, for use on all XJ550, 1984-85 FJ600, 1984-86 XJ600 Euro, 1986-88 FZ600, 1986-90 YX600 Radian, XJ650 Turbo, XJ700-X, XJ750-X, XJ900RK and RL models (BS35 series carbs), 1980-81 XS1100 and XJ1100 models. Includes the sealing o-rings. These solid brass tee's use dual o-rings (included) on each "leg" and thus fit and seal much better than the original plastic-over-aluminum t-fittings. Use 1 per carb rack on all models except XS1100 and XJ1100 models, which will require two. NOTE: use replacement o-ring HCP3458 or HCP6880 on these fittings. Each:
$ 29.95

HCP16283 Aftermarket brass fuel inlet T-FITTING, for use on all XJ900 N, FN, and F models (BS36 series carbs), and all 1978-79 XS1100 models. Includes the sealing o-rings. These solid brass tee's use dual o-rings (included) on each "leg" and thus fit and seal much better than the original plastic-over-aluminum t-fittings. Use 1 per carb rack. NOTE: use replacement o-ring HCP2421 on these fittings. Each:
$ 39.95




HCP5165 OEM aluminum fuel SUPPLY TUBE, use 1 each on all XJ550 models in-between the #1/2 and the #3/4 carbs. Includes the sealing o-rings. NOTE: use replacement o-ring HCP3458 or HCP6880 on these fittings. Each:
$ 59.95

HCP22371 OEM fuel SUPPLY TUBE, use 1 each on all 1992-98 XJ600 Seca II models in-between the #1/2 and the #3/4 carbs. Does not include the rubber “sleeve” seals on each side arm (into the carb body). Each:
$ 32.95

HCP5239 OEM aluminum fuel SUPPLY TUBE, use on all XJ650 Turbo between the #1/2 and the #3/4 carbs, all XJ700-X, and XJ750-X models between both the #1/2 and the #3/4 carbs, all XJ900RK and RL models between the #2/3 carbs only, and all XJ900N, F, and F/N models between both the #1/2 and #3/4 carbs. Includes the sealing o-rings. NOTE: use replacement o-ring HCP3458 or HCP6880 on these fittings. Each:
$ 39.95



HCP9866 OEM fuel bowl vent/overflow plastic T-FITTING, used on all 1986-88 FZ600, 1986-90 YX600 Radian, XJ700-X and XJ750-X models between both the #1/2 and #3/4 carbs. Sealing o-rings are NOT included, use 2 of part HCP3458 or HCP6880. Each:
$ 34.95

HCP9867 OEM fuel bowl vent/overflow plastic T-FITTING, use on all XJ900RK, RL, N/FN, and F models between both the #1/2 and #3/4 carbs. Sealing o-rings are NOT included, use 2 of part HCP3458 or HCP6880. Each:
$ 29.95

HCP16284 Aftermarket brass fuel bowl vent/overflow T-FITTING, used on all 1986-88 FZ600, 1986-90 YX600 Radian, XJ700-X, XJ750-X, and on all XJ900RK, RL, N, FN, and F models between both the #1/2 and #3/4 carbs. Includes the sealing o-rings. These brass tee's fit and seal much better than the original plastic fittings. NOTE: use replacement o-ring HCP16278 on these fittings only. Each:
$ 29.95



HCP9864 OEM fuel bowl vent/overflow aluminum CONNECTOR TUBE, use 1 each on all XJ650 Turbo models between the #2/3 carbs. Includes the sealing o-rings. NOTE: use replacement o-ring HCP3458 or HCP6880 on these fittings. Each:
$ 39.95



mmm1) OEM and aftermarket Mikuni fuel supply tube O-RING.....all fours carbs share a common fuel supply (except on XJ1100 models), and this fuel supply is distributed to each carb via either plastic, brass or aluminum tubes and T-fittings that connects one carb to another. These tubes fits into a machined bores in the carb base, and the tubes are sealed in their bores with these rubber o-rings. Additionally, XJ650 Turbo and XJ700-X and XJ750-X models also used bowl vent connectors (plastic T-fittings) that also used o-rings. NOTE: original seals were "D-rings" rather than "O-rings", but are now serviced only as o-rings, but are the correct shape and firmness to provide a leak-proof fit. You will only be able to access these seals if you break the carbs out of their rack! (and if you do break the rack, you need to replace these seals).

NOTE: on all Mikuni model carbs, the fuel inlet T-fitting does NOT use any o-rings.....it has a thick rubberized "skin" with molded-in "ribs" which the place of real o-rings for the purpose of sealing the t-fitting to the carb body. To be honest, like many of you have commented, I don't understand why the factory choose to use this design rather than traditional o-rings on a metal fitting, but......I'm not a fuel line engineer!


- Use 4 seals per fuel connector pipe in-between carbs 1&2 and 3&4, or a total of 8 seals per entire carb rack, for Mikuni carbs used on all XJ550 and 1986-88 FZ600 models. NOTE: the plastic fuel inlet "T" fitting does not use o-rings.

- Use 2 sleeve seals per fuel connector pipe in-between carbs 1&2 and 3&4, and 2 sleeve seals on the fuel inlet t-fitting between carbs 2/3, for a total of 6 seals per entire carb rack, for Mikuni carbs used on all 1992-98 XJ600 Seca II models.

- Use 4 seals per fuel connector pipe in-between carbs 1&2 and 3&4, and use 4 seals per bowl overflow connector pipes, for a total of 20 seals per entire carb rack, on the Mikuni carbs used on all XJ650 Turbo models. NOTE: the plastic fuel inlet "T" fitting does not use o-rings.

- Use 4 seals per fuel connector pipe in-between carbs 1 & 2 and in-between 3 & 4, and use 2 seals on each bowl overflow "T" connector pipes, or a total of 12 seals per entire carb rack, for Mikuni carbs used on all 1984-85 FJ600, 1986-90 YX600 Radian, XJ700-X, XJ750-X, and XJ900RK, RL, N/FN, and F models. NOTE: the plastic fuel inlet "T" fitting does not use o-rings, and the bowl overflow plastic T-connectors actually use a slightly larger o-ring. However, these o-rings will fit the bowl-overflow T-fittings, although they will result in a slightly more loose fitting pipe in the carb bores. Since these bowl overflow T-connectors don't actually carry fluid---they normally just vent fuel vapors---the slightly looser fit is not an issue.

- In case you're wondering, XS1100 and XJ1100 models used two plastic T-fittings for fuel inlet supply, and those fittings do NOT use any o-rings. There are no bowl vent connector tubes on 1100's, so there are no o-rings used at all on 1100 models!


NOTE: make sure you clean the internal bore cavity (where the fuel pipes fit into the carb body) very well, as that cavity accumulates quite a bit of debris and hardened fuel remnants over the years. Our HCP1409SS bristle-wire brush is the perfect tool for this job:

HCP1409SS Aftermarket STAINLESS STEEL WIRE-BRISTLE CLEANING BRUSH, 9.5mm diameter, great for the float valve seat threaded bore in all Mikuni carb bodies, and the fuel supply pipe bores within the carb body.
$ 6.95


Also, make sure that you do not "pinch" the o-rings as the tube is being inserted into the bores; some silicone grease or dish-washing soap on the o-rings will help avoid that problem.


for all Mikuni carbs except 1992-98 XJ600 Seca II models:

HCP3458 OEM Mikuni fuel supply tube O-RING, each:
$ 6.95

HCP3458SET8 OEM Mikuni fuel supply tube O-RINGS, set of 8:
$ 52.95

HCP3458SET12 OEM Mikuni fuel supply tube O-RINGS, set of 12:
$ 74.95

HCP3458SET20 OEM Mikuni fuel supply tube O-RINGS, set of 20:
$ 119.95



HCP6880 Aftermarket Mikuni fuel supply tube O-RING, made from a durable Buna-N rubber material, fits just like the originals at a much better price. Each:
$ 4.95

HCP6880SET8 Aftermarket Mikuni fuel supply tube O-RINGS, set of 8:
$ 27.95

HCP6880SET12 Aftermarket Mikuni fuel supply tube O-RINGS, set of 12:
$ 39.95

HCP6880SET20 Aftermarket Mikuni fuel supply tube O-RINGS, set of 20:
$ 49.95



HCP16278SET4 Aftermarket Mikuni bowl overflow t-fitting O-RINGS, for use with the HCP16284 aftermarket brass fitting only. Set of 4
$ 6.95



for all 1992-98 XJ600 Seca II model carbs:

HCP22388 OEM Mikuni fuel inlet t-fitting or fuel supply tube RUBBER SLEEVE SEAL, each:
$ 9.95

HCP22388SET6 OEM Mikuni fuel inlet t-fitting or fuel supply tube RUBBER SLEEVE SEALS, set of 6:
$ 57.95


MIKUNI CARB VACUUM DIAPHRAM AND PISTON UNITS:

fs6) OEM and aftermarket Mikuni carb VACUUM DIAPHRAM AND PISTON ASSEMBLY, the slide piston with the non-detachable rubber vacuum diaphram seal. Although it is possible to repair thin spots and TINY pin-holes that occur in original diaphragms , anything greater than that will require replacement, as these diaphram are under a lot of pressure and stress and the continued flexing of the rubber will eventually lead to failure.

The long slinky SPRING provides the proper pressure and resistance to the movement of the piston unit under a variety of vacuum signal conditions, and modified, stretched, or damaged springs should be replaced. Ideally, all fours springs should be replaced all at once to insure equal response from each vacuum piston.


HCP5174 OEM Mikuni VACUUM DIAPHRAM AND PISTON ASSEMBLY, fits all XJ550 models, each:
$ 259.95

HCP5174SET4 OEM Mikuni VACUUM DIAPHRAM AND PISTON ASSEMBLIES, set of 4:
$ 959.95


HCP22696 Aftermarket Mikuni VACUUM DIAPHRAM AND PISTON ASSEMBLIES, fits all XJ550 models. NOTE: this reproduction piston weighs almost 2-grams less than the original piston. Thus it is strongly, highly recommended that all 4 original piston units be replaced at one time; otherwise, performance and tuning issues due to the mix-and-match of original pistons and these pistons may result. Each:
$ 59.95

HCP22696SET4 Aftermarket Mikuni VACUUM DIAPHRAM AND PISTON ASSEMBLIES, set of 4:
$ 219.95



HCP5173 OEM Mikuni vacuum piston SPRING, fits all XJ550, 1986-88 FZ600, and 1986-90 YX600 Radian models, each:
$ discontinued

HCP5173SET4 OEM Mikuni vacuum piston SPRINGS, set of 4:
$ discontinued


HCP19360 Aftermarket Mikuni vacuum piston SPRING, fits all XJ550, 1986-88 FZ600, and 1986-90 YX600 Radian models, each:
$ 14.95

HCP19360SET4 Aftermarket Mikuni vacuum piston SPRINGS, set of 4:
$ 57.95



HCP19361 Aftermarket Mikuni vacuum piston SPRING, fits all XJ650 Turbo models, each:
$ 14.95

HCP19361SET4 Aftermarket Mikuni vacuum piston SPRINGS, set of 4:
$ 57.95




HCP19589 OEM Mikuni VACUUM DIAPHRAM AND PISTON ASSEMBLY, fits all 1984-85 FJ600 models, each:
$ 329.95

HCP19859SET4 OEM Mikuni VACUUM DIAPHRAM AND PISTON ASSEMBLIES, set of 4:
$ 1089.95


HCP7118 OEM Mikuni VACUUM DIAPHRAM AND PISTON ASSEMBLY, fits all XJ700-X and XJ750-X models, each:
$ 259.95

HCP7118SET4 OEM Mikuni VACUUM DIAPHRAM AND PISTON ASSEMBLIES, set of 4:
$ 959.95



HCP9888 OEM Mikuni vacuum piston SPRING, fits all 1984-85 FJ600, all XJ700-X, and XJ750-X models, each:
$ discontinued

HCP9888SET4 OEM Mikuni vacuum piston SPRINGS, set of 4:
$ discontinued


HCP19362 Aftermarket Mikuni vacuum piston SPRING, fits all 1984-85 FJ600, all XJ700-X, and XJ750-X models, each:
$ 14.95

HCP19362SET4 Aftermarket Mikuni vacuum piston SPRINGS, set of 4:
$ 57.95



HCP22368 OEM Mikuni VACUUM DIAPHRAM AND PISTON ASSEMBLY, fits all 1992-98 XJ600 Seca II North American models only, each:
$ 169.95

HCP22368SET4 OEM Mikuni VACUUM DIAPHRAM AND PISTON ASSEMBLIES, set of 4:
$ 649.95


HCP22681 Aftermarket Mikuni VACUUM DIAPHRAM AND PISTON ASSEMBLY, fits all 1992-98 XJ600 Seca II European models only, each:
$ 59.95

HCP22681SET4 Aftermarket Mikuni VACUUM DIAPHRAM AND PISTON ASSEMBLIES, set of 4:
$ 229.95


HCP22369 OEM Mikuni vacuum piston SPRING,fits all 1992-98 XJ600 Seca II North American models only, each:
$ 18.95

HCP22369SET4 OEM Mikuni vacuum piston SPRINGS, set of 4:
$ 74.95




HCP25382 OEM Mikuni VACUUM DIAPHRAM AND PISTON ASSEMBLY, fits all XJ900RK, XJ900RL, XJ900N with BS35 or BS36 series carbs, XJ1100, and all 1980-81 XS1100 models. NOTE: this piston is a superseded original, and features additional air bleed holes that are not present on the original piston, which will change it rise-and-fall characteristics slightly. Thus it is strongly, highly recommended that all 4 original piston units be replaced at one time; otherwise, performance and tuning issues due to the mix-and-match of original pistons and these pistons will result. Each:
$ 179.95

HCP25382SET4 OEM Mikuni VACUUM DIAPHRAM AND PISTON ASSEMBLIES, set of 4:
$ 679.95


HCP1667 Aftermarket Mikuni VACUUM DIAPHRAM AND PISTON ASSEMBLY, fits all XJ900RK, XJ900RL, XJ900N with BS35 series carbs, XJ1100, and all 1980-81 XS1100 models. NOTE: this piston is a superseded original, and features additional air bleed holes that are not present on the original piston, which will change it rise-and-fall characteristics slightly. Thus it is strongly, highly recommended that all 4 original piston units be replaced at one time; otherwise, performance and tuning issues due to the mix-and-match of original pistons and these pistons will result. Each:
$ 69.95

HCP1667SET4 Aftermarket Mikuni VACUUM DIAPHRAM AND PISTON ASSEMBLIES, set of 4:
$ 219.95



HCP9889 OEM Mikuni vacuum piston SPRING, fits all XJ900RK, XJ900RL, XJ900N with BS35 or BS36 series carbs, each:
$ 34.95

HCP9889SET4 OEM Mikuni vacuum piston SPRINGS, set of 4:
$ 124.95


HCP19363 Aftermarket Mikuni vacuum piston SPRING, fits all XJ900RK, XJ900RL, XJ900N with BS35 or BS36 series carbs, each:
$ coming soon!

HCP19363SET4 Aftermarket Mikuni vacuum piston SPRINGS, set of 4:
$ coming soon!



HCP9890 OEM Mikuni vacuum piston SPRING, fits XJ1100 and all 1980-81 XS1100 models, each:
$ discontinued

HCP9890SET4 OEM Mikuni vacuum piston SPRINGS, set of 4:
$ discontinued


HCP19364 Aftermarket Mikuni vacuum piston SPRING, fits all XJ1100 and all 1980-81 XS1100 models, each:
$ 14.95

HCP19364SET4 Aftermarket Mikuni vacuum piston SPRINGS, set of 4:
$ 57.95



NOTE: the following product can only be shipped via ground transport (which thus eliminates the Priority Mail level of service for this item) and cannot (and will not----don't even ask!) be shipped outside of the continental USA. Therefore it may have to be shipped in a separate package from the remainder of your order, and will thus incur additional shipping charges

HCP8540 Aftermarket carb diaphram rubber RnR FLUID. Dissolved and chlorinated paraffin wax is the best (and perhaps the only) way to safely bring some life back into stiff, worn rubber material... such as that found in those all-important carb piston diaphragms. Years of hard life inside of your carb take their toll, and whenever your carb is apart for service, and generous application of this product will help to clean, maintain, and restore the flexibility, while prolonging their usable service life. 10cc dripper bottle contains enough fluid to do about eight diaphragms. Simple to use, spread on, wait a few minutes, wipe off, repeat and you're done!
$ 9.95




fms76) Aftermarket Mikuni carb vacuum piston DIAPHRAM ONLY allows you to salvage your original pistons by replacing the rubber diaphragm. NOTE: the use of the any of the following vacuum diaphrams will require you to remove both the upper and lower plastic diaphragm “cinch” rings (with wire cutters, etc.) and carefully slide these new diaphrams over the top lip of piston and onto the “neck” of the piston (where those cinch rings used to sit). The diaphragm is held in place entirely by a tight friction fit. Installation instructions are included. These are a decent solution when you have missing, damaged, or leaky vac pistons diaphrams. NOTE: it is strongly suggested that all four original diaphrams are replaced (even if only one or two in your carb set are bad), as these new diaphrams will not provide exactly the same vacuum-regulated response as old, original diaphrams.


HCP25373 Aftermarket Mikuni BS28 series carbs VACUUM PISTON DIAPHRAM ONLY, fits all XJ550 models. This is the rubber diaphram only, please see the NOTE above in regards to the installation and use of this product. Each:
$ 24.95

HCP25373SET4 Aftermarket Mikuni VACUUM PISTON DIAPHRAMS ONLY, set of 4:
$ 89.95



HCP25374 Aftermarket Mikuni BS30 series carbs VACUUM PISTON DIAPHRAM ONLY, fits all XJ650 Turbo models. This is the rubber diaphram only, please see the NOTE above in regards to the installation and use of this product. Each:
$ 24.95

HCP25374SET4 Aftermarket Mikuni VACUUM PISTON DIAPHRAMS ONLY, set of 4:
$ 89.95



HCP17539 Aftermarket Mikuni BS33/34 series carbs VACUUM PISTON DIAPHRAM ONLY, fits all 1984-85 FJ600, all water-cooled XJ700-X and XJ750-X models, and some XS1100 which have a 70mm OD seal groove in the carb body. This is the rubber diaphram only, please see the NOTE above in regards to the installation and use of this product. Each:
$ 24.95

HCP17539SET4 Aftermarket Mikuni VACUUM PISTON DIAPHRAMS ONLY, set of 4:
$ 89.95



HCP17540 Aftermarket Mikuni BS34, BS35, and BS36 series carbs VACUUM PISTON DIAPHRAM ONLY, fits all XJ900RK, RL, F, N, and FN models, XJ1100, and some XS1100 models which have a 73mm OD seal groove in the carb body. This is the rubber diaphram only, please see the NOTE above in regards to the installation and use of this product. NOTE: XS1100 owners must measure the seal groove in the carb body (the outer diameter of the recessed groove that the diaphragm fits into) to confirm whether it is 70mm, 73mm, or 77mm O.D……..it could have been either size. Each:
$ 24.95

HCP17540SET4 Aftermarket Mikuni VACUUM PISTON DIAPHRAMS ONLY, set of 4:
$ 89.95



HCP17546 Aftermarket Mikuni BS34, BS35, and BS36 series carbs VACUUM PISTON DIAPHRAM ONLY, fits some XS1100 models which have a 77mm OD seal groove in the carb body. This is the rubber diaphram only, please see the NOTE above in regards to the installation and use of this product. NOTE: XS1100 owners must measure the seal groove in the carb body (the outer diameter of the recessed groove that the diaphragm fits into) to confirm whether it is 70mm, 73mm, or 77mm O.D……..it could have been either size. Each:
$ 24.95

HCP17546SET4 Aftermarket Mikuni VACUUM PISTON DIAPHRAMS ONLY, set of 4:
$ 89.95



NOTE: our experience with the use of the HCP17352 vacuum diaphram below has been less than satisfactory......not because of any quality issue with the product itself (it's great), but simply because there is no easy way to install these new diaphrams onto an old vacuum piston.

The original piston had the lower plastic retaining ring installed, then the diaphram on top of it, and then an upper plastic retaining ring.

The top "lip" of the vacuum piston was forcibly (under great mechanical pressure) swaged down over the top of the upper plastic wing, thus "sandwiching" the diaphram firmly in-between the upper and lower plastic retaining rings.

Since you cannot "un-swage" the top of a used piston in order to remove the top plastic retaining ring (and thus the diaphram), the only way to remove the old diaphram and install a new one is to cut (!) the top plastic retaining ring carefully, remove it, remove the old diaphram, and then install the new diaphram. You will then carefully have to set and super-glue the upper retaining ring back together.

This method, if performed correctly, will work and result in a piston that performs well, or it may be a dismal failure (immediately or after a period of time). We've never done any long-term evaluations of a piston unit after such a procedure was performed, but one small mistake and you'll likely encounter all sorts of performance and tuning difficulties.

HCP17352 Aftermarket Mikuni VACUUM PISTON DIAPHRAM ONLY, fits all XJ900RK, XJ900RL, XJ900N with BS35 series carbs, XJ1100, and all XS1100 models. This is the rubber diaphram only, please see the NOTE further baove in regards to the installation and use of this product. Each:
$ 34.95

HCP17352SET4 Aftermarket Mikuni VACUUM PISTON DIAPHRAM ONLY, set of 4:
$ 99.95




fms16) OEM and aftermarket Mikuni carb vacuum diaphram-piston assembly SPRING SEAT. This flat metal disc fits into the bottom of the vacuum diaphram and serves as a lower seat for the diaphram spring, and also retains the main jet needle within the diaphram piston unit.

HCP9906 OEM vacuum diaphram SPRING SEAT, fits all 1985-85 FJ600, XJ700-X, XJ750-X, XJ900, XJ1100 and 1980-81 XS1100 models.
$ 6.95




fms7) OEM and aftermarket Mikuni carb vacuum diaphram-piston assembly spring seat MOUNTING SCREWS, panhead phillips-drive screws secures the round spring seat plate to the bottom of the diaphram assembly. Fits all XJ550, XJ650 Turbo, XJ700-X, XJ750-X, all XJ900RK, RL, N/FN, and F models, XJ1100, and all 1980-81 XS1100 models. NOTE: the original screws on XJ550 and XJ650 Turbo models did NOT use a lockwasher; all others did use integral lock washers. Replacement screws listed below do not have integral lockwashers, and they can be ordered separate below. Use 2 per carb.


HCP104 OEM Mikuni carb vacuum piston spring seat MOUNTING SCREW, yellow zinc-plated alloy steel, panhead, phillips-drive screw, each:
$ 2.95

HCP104SET2 OEM Mikuni carb vacuum piston spring seat MOUNTING SCREWS, yellow zinc-plated alloy steel, panhead, phillips-drive screw, set of 2:
$ 5.75

HCP104SET8 OEM Mikuni carb vacuum piston spring seat MOUNTING SCREWS, yellow zinc-plated alloy steel, panhead, phillips-drive screw, set of 8:
$ 9.95



HCP2907 Aftermarket Mikuni carb vacuum piston spring seat MOUNTING SCREW, zinc-plated alloy steel, panhead, phillips-drive screw, each:
$ 1.50

HCP2907SET2 Aftermarket Mikuni carb vacuum piston spring seat MOUNTING SCREWS, zinc-plated alloy steel, panhead, phillips-drive screw, set of 2:
$ 2.75

HCP2907SET8 Aftermarket Mikuni carb vacuum piston spring seat MOUNTING SCREWS, zinc-plated alloy steel, panhead, phillips-drive screw, set of 8:
$ 9.95



HCP105 Aftermarket Mikuni carb vacuum piston spring seat MOUNTING SCREW, 18-8 bright stainless steel, panhead, phillips-drive screw, each:
$ 2.50

HCP105SET2 Aftermarket Mikuni carb vacuum piston spring seat MOUNTING SCREWS, 18-8 bright stainless steel, panhead, phillips-drive screw, set of 2:
$ 4.50

HCP105SET8 Aftermarket Mikuni carb vacuum piston spring seat MOUNTING SCREWS, 18-8 bright stainless steel, panhead, phillips-drive screw, set of 8:
$ 16.95



HCP2908 Aftermarket Mikuni carb vacuum piston spring seat MOUNTING SCREW, black oxide coated alloy steel, panhead, phillips-drive screw, each:
$ 1.50

HCP2908SET2 Aftermarket Mikuni carb vacuum piston spring seat MOUNTING SCREWS, black oxide coated alloy steel, panhead, phillips-drive screw, set of 2:
$ 2.75

HCP2908SET8 Aftermarket Mikuni carb vacuum piston spring seat MOUNTING SCREWS, black oxide coated alloy steel, panhead, phillips-drive screw, set of 8:
$ 9.95



HCP297 Aftermarket Mikuni carb vacuum piston spring seat screw LOCK WASHER, 18-8 stainless steel, each:
$ 0.95

HCP297SET2 Aftermarket Mikuni carb vacuum piston spring seat screw LOCK WASHERS, 18-8 stainless steel, set of 2:
$ 1.75

HCP297ET8 Aftermarket Mikuni carb vacuum piston spring seat screw LOCK WASHERS, 18-8 stainless steel, set of 8:
$ 6.50




HCP297 Aftermarket Mikuni carb vacuum piston spring seat screw LOCK WASHER, 18-8 stainless steel, each:
$ 0.95

HCP297SET2 Aftermarket Mikuni carb vacuum piston spring seat screw LOCK WASHERS, 18-8 stainless steel, set of 2:
$ 1.75

HCP297SET8 Aftermarket Mikuni carb vacuum piston spring seat screw LOCK WASHERS, 18-8 stainless steel, set of 8:
$ 6.50





MIKUNI CARBS HATS:

Mikuni Carb Hats:

Reproduction Mikuni CARB DIAPHRAM COVERS, commonly called carb "hats", are the bright upper covers with the "round dome" shape. Brand new stampings perfectly replace rusted and pitted originals, add a final "crowning" touch to your carb restoration project.


HCP9160 Aftermarket Mikuni POLISHED SILVER CHROME CARB HAT, mirror finish as used on the outboard carbs (#1 and #4) on all XJ550 models. NOTE: can be used on all fours carbs for a more decorative appearance. Each:
$ 32.95

HCP9160SET2 Aftermarket Mikuni POLISHED SILVER CHROME CARB HATS, set of 2:
$ 54.95

HCP9160SET4 Aftermarket Mikuni POLISHED SILVER CHROME CARB HATS, set of 4:
$ 89.95



HCP9161 Aftermarket Mikuni NATURAL ZINC-PLATED CARB HAT, dull silver finish as used on the inner carbs only (#2 and #3) on all XJ550 models. Each:
$ 27.95

HCP9161SET2 Aftermarket Mikuni NATURAL ZINC-PLATED CARB HAT, set of 2:
$ 47.95



HCP91601SET Complete set of 4 carb hats, contains two of the HCP9160 polished chrome hats, and two of the HCP9161 zinc-plated hats. This combination of covers is correct for the following models: all XJ550 models.
$ 89.95




HCP10010 Aftermarket Mikuni POLISHED GOLDEN CHROME CARB HAT, golden mirror finish. Fits all XJ550 models. NOTE: golden-chrome hats were never used originally on these models, but these are an attractive upgrade that have the same finish as was used on many of the "Midnight Maxim" models. Each:
$ 39.95

HCP10010SET2 Aftermarket Mikuni POLISHED GOLDEN CHROME CARB HATS, set of 2:
$ 59.95

HCP10010SET4 Aftermarket Mikuni POLISHED GOLDEN CHROME CARB HATS, set of 4:
$ 99.95




HCP26819-RP OEM Mikuni RE-PLATED POLISHED GOLDEN-CHROME CARB HAT, golden mirror finish as used on all fours carbs on all XS1100 Midnight Special and 1983-84 XJ1100 Midnight Maxim models. Will fit all 1980-81 XS1100 and 1982 XJ1100 Maxim model carbs well as 1980-82 SR250, 1980-81 XS400, and 1982-83 XS650 Special carb sets. NOTE: requires a $ 25.00 core charge, refundable upon the return of an undamaged, same-model carb hat; “undamaged” means no dents, dings, rust pits (top side), etc. Since these are re-plated used parts, we do require an exchange for your original parts so we can have a steady supply of parts to be processed and re-plated for future sales. These are used original parts, and as such, may have minor cosmetic flaws (tooling marks, fastener marks, etc.). Most such marks will not be visible once installed. Each:
$ 59.95 + refundable $ 25.00 core charge

HCP26819SET4-RP OEM Mikuni RE-PLATED POLISHED GOLDEN-CHROME CARB HATS, golden mirror finish as used on all fours carbs on all XS1100 Midnight Special and 1983-84 XJ1100 Midnight Maxim models. Set of 4:
$ 239.95 + refundable $ 100.00 core charge




MIKUNI CARB HAT HARDWARE:

Mikuni Carb Hat Brackets:

Our re-plated Mikuni carb diaphram cover (chrome "dome" or "Hat") individual BRACKETS allow you to re-create the original look and beauty of these carb racks. These parts are available re-plated to their correct original silver- or yellow-zinc appearance. If you need to replace any missing hardware, or just want to create a show-winning look, then you should start your shopping list here! NOTE: all synch hardware pieces are re-plated, used parts, and as such, may have minor cosmetic flaws (tooling marks, fastener marks, etc.). Most such marks will not be visible once installed. Also, all re-plated items require a refundable core charge which will be credited back to you once you return a same-model, same-type of item(s) as you purchased. Since these are re-plated used parts, we do require an exchange for your original parts so we can have a steady supply of parts to be processed and re-plated for future sales.


HCP5181RP OEM re-plated carb hat CHOKE CABLE BRACKET, mounted on the #1 hat front position. Beautiful yellow-zinc plating brings the top side of these carbs to life. Fits all BS28-series carbs as used on all XJ550 models. Does not include the HCP5489RP clamp or the HCP4561RP clamp screw listed below. NOTE: requires a $ 25.00 core charge, refundable upon the return of an undamaged, same-model, same-type bracket.
$ 39.95 + $ 25.00 refundable core charge

HCP17729RP OEM re-plated carb hat CHOKE CABLE BRACKET, mounted on the #3 hat outer position. Beautiful yellow-zinc plating brings the top side of these carbs to life. Fits all BS30-series carbs as used on all XJ650 Turbo models. Does not include the HCP17725RP clamp or the HCP17726RP clamp screw listed below. NOTE: requires a $ 25.00 core charge, refundable upon the return of an undamaged, same-model, same-type bracket.
$ 39.95 + $ 25.00 refundable core charge

HCP17733RP OEM re-plated carb hat CHOKE CABLE BRACKET, mounted on the #3 hat outer position. Beautiful yellow-zinc plating brings the top side of these carbs to life. Fits all BS33-series carbs as used on all water-cooled XJ700-X and XJ750-X models. Does not include the HCP17737RP clamp or the HCP17726RP clamp screw listed below. NOTE: requires a $ 25.00 core charge, refundable upon the return of an undamaged, same-model, same-type bracket.
$ 39.95 + $ 25.00 refundable core charge

HCP17734RP OEM re-plated carb hat CHOKE CABLE BRACKET, mounted on the #4 hat inner position. Beautiful yellow-zinc plating brings the top side of these carbs to life. Fits all BS35- and BS36-series carbs as used on XJ900 models and on XJ1100 (BS34 carbs) models. Does not include the HCP17725RP clamp or the HCP17726RP clamp screw listed below. NOTE: requires a $ 25.00 core charge, refundable upon the return of an undamaged, same-model, same-type bracket.
$ 39.95 + $ 25.00 refundable core charge



HCP5489RP OEM re-plated carb hat choke cable bracket CLAMP, mounts to the HCP5181RP choke cable bracket listed above. Beautiful yellow-zinc plating brings the top side of these carbs to life. Fits all BS28-series carbs as used on all XJ550 models. . Does not include the HCP4561 clamp screw listed below. NOTE: requires a $ 15.00 core charge, refundable upon the return of an undamaged, same-model, same-type clamp.
$ 17.95 + $ 15.00 refundable core charge

HCP17725RP OEM re-plated carb hat choke cable bracket CLAMP, mounts to the HCP17729RP choke cable bracket listed above. Beautiful yellow-zinc plating brings the top side of these carbs to life. Fits all XJ650 Turbo, all XJ900 (BS35 and BS36 series carbs), and all XJ1100 (BS34 carbs) models. Does not include the HCP4561 clamp screw listed below. NOTE: requires a $ 15.00 core charge, refundable upon the return of an undamaged, same-model, same-type clamp.
$ 17.95 + $ 15.00 refundable core charge

HCP17737RP OEM re-plated carb hat choke cable bracket CLAMP, mounts to the HCP17729RP choke cable bracket listed above. Beautiful yellow-zinc plating brings the top side of these carbs to life. Fits all BS33-series carbs as used on all water-cooled XJ700-X and XJ750-X models. Does not include the HCP17726RP clamp screw listed below. NOTE: requires a $ 15.00 core charge, refundable upon the return of an undamaged, same-model, same-type clamp.
$ 19.95 + $ 15.00 refundable core charge



HCP4561RP OEM re-plated carb hat choke cable bracket CLAMP SCREW, mounts the choke cable clamp to the choke cable bracket on all XJ550 models. Beautiful yellow-zinc plating brings the top side of these carbs to life. NOTE: requires a $ 10.00 core charge, refundable upon the return of an undamaged, same-model, same-type screw.
$ 11.95 + $ 10.00 refundable core charge

HCP17726RP OEM re-plated carb hat choke cable bracket CLAMP SCREW, mounts the choke cable clamp to the choke cable bracket on all XJ650 Turbo, all water-cooled XJ700-X and XJ750-X models, all XJ900 (BS35 and BS36 series carbs), and all XJ1100 (BS34 carbs) models. Beautiful yellow-zinc plating brings the top side of these carbs to life. NOTE: requires a $ 10.00 core charge, refundable upon the return of an undamaged, same-model, same-type screw.
$ 11.95 + $ 10.00 refundable core charge




HCP5490RP OEM re-plated carb hat THROTTLE CABLE BRACKET, mounted on the #2 hat inner position. Beautiful yellow-zinc plating brings the top side of these carbs to life. Fits all BS28-series carbs as used on all XJ550 models. NOTE: requires a $ 25.00 core charge, refundable upon the return of an undamaged, same-model, same-type bracket.
$ 29.95 + $ 25.00 refundable core charge


HCP10433RP OEM re-plated carb hat THROTTLE CABLE BRACKET, mounted on the #3 hat inner position. Beautiful silver-zinc plating brings the top side of these carbs to life. Fits all BS30-series carbs as used on all XJ650 Turbo models. NOTE: requires a $ 25.00 core charge, refundable upon the return of an undamaged, same-model, same-type bracket.
$ 29.95 + $ 25.00 refundable core charge

HCP7411RP OEM re-plated carb hat FUEL PRESSURE REGULATOR BRACKET, mounts to the HCP10433RP throttle cable bracket listed above. Beautiful silver-zinc plating brings the top side of these carbs to life. Fits all BS30-series carbs as used on all XJ650 Turbo models. NOTE: requires a $ 25.00 core charge, refundable upon the return of an undamaged, same-model, same-type bracket.
$ 39.95 + $ 25.00 refundable core charge


HCP17731RP OEM re-plated carb hat THROTTLE CABLE BRACKET, mounted on the #3 hat inner position. Beautiful yellow-zinc plating brings the top side of these carbs to life. Fits all BS33-series carbs as used on all water-cooled XJ700-X and XJ750-X models. NOTE: requires a $ 25.00 core charge, refundable upon the return of an undamaged, same-model, same-type bracket.
$ 29.95 + $ 25.00 refundable core charge

HCP17732RP OEM re-plated carb hat THROTTLE CABLE BRACKET, mounted on the #3 hat inner position. Beautiful yellow-zinc plating brings the top side of these carbs to life. Fits all XJ900 models using the BS35- or BS36-series carbs and all XJ1100 models using the BS34-series carbs. NOTE: requires a $ 25.00 core charge, refundable upon the return of an undamaged, same-model, same-type bracket.
$ 39.95 + $ 25.00 refundable core charge




Mikuni Carb Hat Clips:

HCP14205 OEM carb body-pressure sensor VACUUM HOSE ROUTING CLIP, use one on the #1 carb hat, rear inner position, on all XJ650 Turbo models. This “shepherd’s crook” bright plated clips route the vacuum hose (in the “crook” part of the clip) away from obstacles, and lays flat (not upright) and captures the pressure sensor vacuum hose (which comes off the front brass fitting of the #2 carb) and routes it properly on its path. Perfectly replaces a commonly missing or rusted original. Use 1 per carb. Each.
$ discontinued

HCP21530 Aftermarket carb body-pressure sensor VACUUM HOSE ROUTING CLIP, use one on the #1 carb hat, rear inner position, on all XJ650 Turbo models. This “shepherd’s crook” bright plated clips route the vacuum hose (in the “crook” part of the clip) away from obstacles, and lays flat (not upright) and captures the pressure sensor vacuum hose (which comes off the front brass fitting of the #2 carb) and routes it properly on its path. Perfectly replaces a commonly missing or rusted original. Use 1 per carb. Each:
$ 9.95

HCP21529 Aftermarket Mikuni carb hat CLUTCH CABLE ROUTING CLIP, mounts on the #3 carb hat in the outer position, on all XJ1100 models. Heavy wire "shepherd's crook" shaped clip is secured by the carb screw, and captures and properly routes the clutch cable on its way to the clutch cover area. Perfectly replaces a commonly missing or rusted original. Use 1 per carb.
$ 9.95



Mikuni Carb Hat Fasteners:

ch3) OEM and aftermarket Mikuni carb hat-to-body (the “chrome “hat” technically known as a diaphram cover) MOUNTING SCREW. available in a variety of styles and finishes. All Mikuni model carbs originally used a panhead, phillips-drive hat mounting screw with a zinc-plated finish, and did not use a lockwasher. Use 4 per carb, 16 per rack. NOTE: XJ650 Turbo models also used one additional unit of this screw to secure the check valve to its mounting bracket. Also see our complete CARB HARDWARE KITS listed further below for the best deal and ease of ordering!

Here are some quick guides that shows the different head and drive styles:



https://www.boltdepot.com/fastener-information/Printable-Tools/Type-Chart.pdf

http://www.oocities.org/dtmcbride/home_garden/fasteners.html


for all XJ550, 1984-85 FJ600, XJ650 Turbo, XJ700-X, XJ750-X, all XJ900RK, RL, N/FN, and F models, and XJ1100 models :

- These replacement panhead, phillips-drive screws have a natural finish and are made from alloy steel.

HCP60 OEM Mikuni carb hat MOUNTING SCREW, zinc-plated alloy-steel, panhead, phillips-drive, each:
$ 2.95

HCP60SET4 OEM Mikuni carb hat MOUNTING SCREW, set of 4:
$ 11.50

HCP60SET16 OEM Mikuni carb hat MOUNTING SCREW, set of 16:
$ 39.95



HCP910 Aftermarket Mikuni carb hat MOUNTING SCREW, zinc-plated alloy-steel, panhead, phillips-drive, each:
$ 1.50

HCP910SET4 Aftermarket Mikuni carb hat MOUNTING SCREW, set of 4:
$ 5.75

HCP910SET16 Aftermarket Mikuni carb hat MOUNTING SCREW, set of 16:
$ 17.95



- These replacement panhead, phillips-drive screws have a polished head and are made from an 18-8 stainless steel.

HCP62 Aftermarket Mikuni carb hat MOUNTING SCREW, 18-8 stainless-steel, panhead, phillips-drive, each:
$ 1.50

HCP62SET4 Aftermarket Mikuni carb hat MOUNTING SCREW, set of 4:
$ 4.50

HCP62SET16 Aftermarket Mikuni carb hat MOUNTING SCREW, set of 16:
$ 14.95



- These replacement panhead, phillips-drive screws have a black oxide-coated finish and are made from 18-8 stainless steel.

HCP2749 Aftermarket Mikuni carb hat MOUNTING SCREW, black-oxide coated stainless steel, panhead phillips-drive, each:
$ 1.50

HCP2749SET4 Aftermarket Mikuni carb hat MOUNTING SCREW, set of 4:
$ 5.50

HCP2749SET16 Aftermarket Mikuni carb hat MOUNTING SCREW, set of 16:
$ 18.00



- These replacement button-head, hex-drive screws have a polished head and are made from an 18-8 stainless steel.

HCP308 Aftermarket Mikuni carb hat MOUNTING SCREW, 18-8 stainless-steel, polished button head, hex-drive, each:
$ 1.25

HCP308SET4 Aftermarket Mikuni carb hat MOUNTING SCREW, set of 4:
$ 4.50

HCP308SET16 Aftermarket Mikuni carb hat MOUNTING SCREW, set of 16:
$ 14.00



- These replacement socket-head, hex-drive screws have a smooth polished head and are made from an 18-8 stainless steel.

HCP310 Aftermarket Mikuni carb hat MOUNTING SCREW, 18-8 stainless steel, smooth polished socket head, hex-drive, each:
$ 1.50

HCP310SET4 Aftermarket Mikuni carb hat MOUNTING SCREW, set of 4:
$ 5.25

HCP310SET16 Aftermarket Mikuni carb hat MOUNTING SCREW, set of 16:
$ 12.95



- These replacement socket-head, hex-drive screws have a black ribbed head and are made from an alloy steel.

HCP64 Aftermarket Mikuni carb hat MOUNTING SCREW, black oxide-coated steel, ribbed socket head, hex-drive, each:
$ 1.00

HCP64SET4 Aftermarket Mikuni carb hat MOUNTING SCREW, set of 4:
$ 3.50

HCP64SET16 Aftermarket Mikuni carb hat MOUNTING SCREW, set of 16:
$ 10.95




for all 1992-98 XJ600 Seca II models:

- These replacement panhead, phillips-drive screws have a natural finish and are made from alloy steel.

HCP322 OEM Mikuni carb hat short MOUNTING SCREW, zinc-plated alloy-steel, panhead, phillips-drive. Use 4 per hat, or 12 per entire rack, in all positions except the four center positions that hold the throttle cable bracket to the #2 and #3 carb hats. Each:
$ 2.95

HCP322SET4 OEM Mikuni carb hat short MOUNTING SCREWS, set of 4:
$ 9.75

HCP322SET12 OEM Mikuni carb hat short MOUNTING SCREWS, set of 12:
$ 24.95



HCP918 Aftermarket Mikuni carb hat short MOUNTING SCREW, zinc-plated alloy-steel, panhead, phillips-drive. Use 4 per hat, or 12 per entire rack, in all positions except the four center positions that hold the throttle cable bracket to the #2 and #3 carb hats. Each:
$ 1.00

HCP918SET4 Aftermarket Mikuni carb hat short MOUNTING SCREWS, set of 4:
$ 3.75

HCP918SET12 Aftermarket Mikuni carb hat short MOUNTING SCREWS, set of 12:
$ 6.95



HCP25913 Aftermarket Mikuni carb hat short MOUNTING SCREW, bright zinc-plated alloy steel, panhead, phillips drive, JIS small-head design as original. Use 4 per hat, or 12 per entire rack, in all positions except the four center positions that hold the throttle cable bracket to the #2 and #3 carb hats. Each:
$ 2.95

HCP25913SET4 Aftermarket Mikuni carb hat short MOUNTING SCREWS, set of 4:
$ 9.75

HCP25913SET12 Aftermarket Mikuni carb hat short MOUNTING SCREWS, set of 12:
$ 24.95




HCP3696 OEM Mikuni carb hat long MOUNTING SCREW, zinc-plated alloy-steel, panhead, phillips-drive. Use 4 per rack, in the positions that secure the throttle cable bracket on carbs #2 and #3. Each:
$ 2.50

HCP3696SET4 OEM Mikuni carb hat long MOUNTING SCREWS, set of 4:
$ 9.50



HCP5482 Aftermarket Mikuni carb hat long MOUNTING SCREW, zinc-plated alloy steel, panhead, phillips-drive. Use 4 per rack, in the positions that secure the throttle cable bracket on carbs #2 and #3. Each:
$ 1.00

HCP5482SET4 Aftermarket Mikuni carb hat long MOUNTING SCREWS, set of 4:
$ 3.50




- These replacement panhead, phillips-drive screws have a polished head and are made from an 18-8 stainless steel.

HCP1355 Aftermarket Mikuni carb hat short MOUNTING SCREW, 18-8 stainless-steel, panhead, phillips-drive. Use 4 per hat, or 12 per entire rack, in all positions except the four center positions that hold the throttle cable bracket to the #2 and #3 carb hats. Each:
$ 1.25

HCP1355SET4 Aftermarket Mikuni carb hat short MOUNTING SCREWS, set of 4:
$ 4.95

HCP1355SET12 Aftermarket Mikuni carb hat short MOUNTING SCREWS, set of 12:
$ 12.95



HCP21356 Aftermarket Mikuni carb hat long MOUNTING SCREW, 18-8 stainless steel, panhead, phillips-drive.. Use 4 per rack, in the positions that secure the throttle cable bracket on carbs #2 and #3. Each:
$ 1.50

HCP21356SET4 Aftermarket Mikuni carb hat long MOUNTING SCREWS, set of 4:
$ 4.95



- These replacement button-head, hex-drive screws have a polished head and are made from an 18-8 stainless steel.

HCP332 Aftermarket Mikuni carb hat short MOUNTING SCREW, 18-8 stainless-steel, polished button head, hex-drive. Use 4 per hat, or 12 per entire rack, in all positions except the four center positions that hold the throttle cable bracket to the #2 and #3 carb hats. Each:
$ 1.50

HCP332SET4 Aftermarket Mikuni carb hat short MOUNTING SCREWS, set of 4:
$ 5.25

HCP332SET12 Aftermarket Mikuni carb hat short MOUNTING SCREWS, set of 12:
$ 10.95



HCP5485 Aftermarket Mikuni carb hat long MOUNTING SCREW, 18-8 stainless-steel, polished button head, hex-drive. Use 4 per rack, in the positions that secure the throttle cable bracket on carbs #2 and #3. Each:
$ 1.50

HCP5485SET4 Aftermarket Mikuni carb hat long MOUNTING SCREWS, set of 4:
$ 4.95




- These replacement socket-head, hex-drive screws have a smooth polished head and are made from an 18-8 stainless steel.

HCP329 Aftermarket Mikuni carb hat short MOUNTING SCREW, 18-8 stainless steel, smooth polished socket head, hex-drive. Use 4 per hat, or 12 per entire rack, in all positions except the four center positions that hold the throttle cable bracket to the #2 and #3 carb hats. Each:
$ 1.25

HCP329SET4 Aftermarket Mikuni carb hat short MOUNTING SCREWS, set of 16:
$ 4.75

HCP329SET12 Aftermarket Mikuni carb hat short MOUNTING SCREWS, set of 12:
$ 10.75



HCP5483 Aftermarket Mikuni carb hat long MOUNTING SCREW, 18-8 stainless steel, smooth polished socket head, hex-drive. Use 4 per rack, in the positions that secure the throttle cable bracket on carbs #2 and #3. Each:
$ 1.50

HCP5483SET4 Aftermarket Mikuni carb hat long MOUNTING SCREWS, set of 4:
$ 5.25




- These replacement socket-head, hex-drive screws have a ribbed head with a black oxide-coated finish and are made from alloy steel.

HCP339 Aftermarket Mikuni carb hat short MOUNTING SCREW, black oxide-coated steel, ribbed socket head, hex-drive. Use 4 per hat, or 12 per entire rack, in all positions except the four center positions that hold the throttle cable bracket to the #2 and #3 carb hats. Each:
$ 1.20

HCP339SET4 Aftermarket Mikuni carb hat short MOUNTING SCREWS , set of 4:
$ 4.50

HCP339SET12 Aftermarket Mikuni carb hat short MOUNTING SCREWS , set of 12:
$ 10.50



HCP5484 Aftermarket Mikuni carb hat long MOUNTING SCREW, black oxide-coated steel, ribbed socket head, hex-drive. Use 4 per rack, in the positions that secure the throttle cable bracket on carbs #2 and #3. Each:
$ 1.50

HCP5484SET4 Aftermarket Mikuni carb hat long MOUNTING SCREWS, set of 4:
$ 4.95




HCP60 OEM Mikuni throttle cable bracket mounting SCREW, mounts in the center of the throttle cable bracket and retains the “z-clamp” to the aluminum bracket, use 1 per rack on all 1992-93 XJ600 Seca II models. A separate lockwasher (listed below) is also used with this screw. Panhead, phillips-drive, zinc-plated alloy steel.
$ 2.95

HCP22772 OEM Mikuni throttle cable bracket mounting SCREW, mounts in the center of the throttle cable bracket and retains the “z-clamp” to the aluminum bracket, use 1 per rack on all 1994 XJ600 Seca II models. A separate lockwasher (listed below) is also used with this screw. Panhead, phillips-drive, zinc-plated alloy steel.
$ 3.95

HCP9180 OEM Mikuni throttle cable bracket mounting SCREW, mounts in the center of the throttle cable bracket and retains the “z-clamp” to the aluminum bracket, use 1 per rack on all 1995-97 XJ600 Seca II models. A separate lockwasher (listed below) is also used with this screw. Panhead, phillips-drive, phosphate-plated alloy steel.
$ 1.95

HCP22771 OEM Mikuni throttle cable bracket mounting SCREW, mounts in the center of the throttle cable bracket and retains the “z-clamp” to the aluminum bracket, use 1 per rack on all 1998 XJ600 Seca II models. A separate lockwasher (listed below) is also used with this screw. Panhead, phillips-drive, zinc-plated alloy steel.
$ 1.95


HCP21368 Aftermarket Mikuni throttle cable bracket mounting SCREW, mounts in the center of the throttle cable bracket and retains the “z-clamp” to the aluminum bracket, use 1 per rack on all 1992-98 XJ600 Seca II models. A separate lockwasher (listed below) is also used with this screw. Panhead, phillips-drive, zinc-plated alloy steel.
$ 1.00

HCP5889 Aftermarket Mikuni throttle cable bracket mounting SCREW, mounts in the center of the throttle cable bracket and retains the “z-clamp” to the aluminum bracket, use 1 per rack on all 1992-98 XJ600 Seca II models. A separate lockwasher (listed below) is also used with this screw. Panhead, phillips-drive, bright 18-8 stainless steel.
$ 1.25

HCP21369 Aftermarket Mikuni throttle cable bracket mounting SCREW, mounts in the center of the throttle cable bracket and retains the “z-clamp” to the aluminum bracket, use 1 per rack on all 1992-98 XJ600 Seca II models. A separate lockwasher (listed below) is also used with this screw. Panhead, phillips-drive, bacl-oxide coated 18-8 stainless steel.
$ 1.95

HCP21372 Aftermarket Mikuni throttle cable bracket mounting SCREW, mounts in the center of the throttle cable bracket and retains the “z-clamp” to the aluminum bracket, use 1 per rack on all 1992-98 XJ600 Seca II models. A separate lockwasher (listed below) is also used with this screw. Polished 18-8 stainless steel, button head, hex-drive style.
$ 1.25

HCP21370 Aftermarket Mikuni throttle cable bracket mounting SCREW, mounts in the center of the throttle cable bracket and retains the “z-clamp” to the aluminum bracket, use 1 per rack on all 1992-98 XJ600 Seca II models. A separate lockwasher (listed below) is also used with this screw. Bright 18-8 stainless steel, socket head, hex-drive style.
$ 1.00

HCP21371 Aftermarket Mikuni throttle cable bracket mounting SCREW, mounts in the center of the throttle cable bracket and retains the “z-clamp” to the aluminum bracket, use 1 per rack on all 1992-98 XJ600 Seca II models. A separate lockwasher (listed below) is also used with this screw. Black-oxide coated 18-8 stainless steel, socket head, hex-drive style.
$ 1.00



HCP55 OEM Mikuni carb throttle cable clamp bracket screw LOCK WASHER, zinc-plated alloy steel. For use on all 1992-98 XJ600 Seca II models only, use 1 per screw, each:
$ 1.95

HCP913 Aftermarket Mikuni carb throttle cable clamp bracket screw LOCK WASHER, zinc-plated alloy steel. For use on all 1992-98 XJ600 Seca II models only, use 1 per screw, each:
$ 1.00

HCP57 Aftermarket Mikuni carb throttle cable clamp bracket screw LOCK WASHER, 18-8 stainless steel. For use on all 1992-98 XJ600 Seca II models only, use 1 per screw, each:
$ 1.00

HCP59 Aftermarket Mikuni carb throttle cable clamp bracket screw LOCK WASHER, black-oxide coated alloy steel. For use on all 1992-98 XJ600 Seca II models only, use 1 per screw, each.
$ 1.00



XJ650 Turbo Additional Hat Hardware:

HCP1467 OEM fuel pressure regulator and check valve mounting bracket-to-carb hat bracket SCREW. On the inner side of the #3 carb hat, XJ650 Turbo models use a special bracket to hold both the fuel pressure regulator and the check valve. This screw attaches that pressure regulator/check valve bracket to the accelerator cable bracket. Use 2 per carb; order the HCP315 lockwashers separately. Each:
$ 3.50

HCP2746 Aftermarket fuel pressure regulator and check valve mounting bracket-to-carb hat bracket SCREW, zinc-plated alloy steel, panhead, phillips-drive. On the inner side of the #3 carb hat, XJ650 Turbo models use a special bracket to hold both the fuel pressure regulator and the check valve. This screw attaches that pressure regulator/check valve bracket to the accelerator cable bracket. Use 2 per carb; order the HCP916 lockwashers separately. Each:
$ 2.95

HCP2747 Aftermarket fuel pressure regulator and check valve mounting bracket-to-carb hat bracket SCREW, 18-8 stainless steel, panhead, phillips-drive. On the inner side of the #3 carb hat, XJ650 Turbo models use a special bracket to hold both the fuel pressure regulator and the check valve. This screw attaches that pressure regulator/check valve bracket to the accelerator cable bracket. Use 2 per carb; order the HCP319 lockwashers separately. Each.
$ 3.95

HCP21431 Aftermarket fuel pressure regulator and check valve mounting bracket-to-carb hat bracket SCREW, 18-8 stainless steel, polished finish, button head, hex-drive. On the inner side of the #3 carb hat, XJ650 Turbo models use a special bracket to hold both the fuel pressure regulator and the check valve. This screw attaches that pressure regulator/check valve bracket to the accelerator cable bracket. Use 2 per carb; order the HCP319 lockwashers separately. Each.
$ 1.95

HCP21430 Aftermarket fuel pressure regulator and check valve mounting bracket-to-carb hat bracket SCREW, 18-8 stainless steel, socket head, smooth polished head, hex-drive. On the inner side of the #3 carb hat, XJ650 Turbo models use a special bracket to hold both the fuel pressure regulator and the check valve. This screw attaches that pressure regulator/check valve bracket to the accelerator cable bracket. Use 2 per carb; order the HCP319 lockwashers separately. Each.
$ 1.95

HCP21432 Aftermarket fuel pressure regulator and check valve mounting bracket-to-carb hat bracket SCREW, black-oxide coated alloy steel, socket head, hex-drive. On the inner side of the #3 carb hat, XJ650 Turbo models use a special bracket to hold both the fuel pressure regulator and the check valve. This screw attaches that pressure regulator/check valve bracket to the accelerator cable bracket. Use 2 per carb; order the HCP321 lockwashers separately. Each.
$ 1.50



HCP315 OEM fuel pressure regulator and check valve mounting bracket-to-carb hat bracket LOCK WASHER, use with any of the screws listed above on all XJ650 Turbo models, each:
$ 2.95

HCP916 Aftermarket zinc-plated alloy steel with a natural finish, fuel pressure regulator and check valve mounting bracket-to-carb hat bracket LOCK WASHER, use with any of the screws listed above on all XJ650 Turbo models, each:
$ 1.25

HCP319 Aftermarket 18-8 stainless steel fuel pressure regulator and check valve mounting bracket-to-carb hat bracket LOCK WASHER, use with any of the screws listed above on all XJ650 Turbo models, each:
$ 1.50

HCP321 Aftermarket black oxide-coated alloy steel fuel pressure regulator and check valve mounting bracket-to-carb hat bracket LOCK WASHER, use with any of the screws listed above on all XJ650 Turbo models, each:
$ 1.75



HCP5386 OEM fuel pressure regulator and check valve mounting bracket NUT. On the inner side of the #3 carb hat, XJ650 Turbo models use a special bracket to hold both the fuel pressure regulator and the check valve. This nut secures the pressure regulator to its bracket (which in turn is screwed into to the accelerator cable bracket). Use 1 per carb; order the HCP10422 plate washer separately. Each:
$ 3.95

HCP21407 Aftermarket fuel pressure regulator and check valve mounting bracket NUT, zinc-plated alloy steel. On the inner side of the #3 carb hat, XJ650 Turbo models use a special bracket to hold both the fuel pressure regulator and the check valve. This nut secures the pressure regulator to its bracket (which in turn is screwed into to the accelerator cable bracket). Use 1 per carb; order the HCP21409 plate washer separately. Each:
$ 1.95

HCP21408 Aftermarket fuel pressure regulator and check valve mounting bracket NUT, 18-8 stainless steel. On the inner side of the #3 carb hat, XJ650 Turbo models use a special bracket to hold both the fuel pressure regulator and the check valve. This nut secures the pressure regulator to its bracket (which in turn is screwed into to the accelerator cable bracket). Use 1 per carb; order the HCP21409 plate washer separately. Each:
$ 2.95


HCP10422 OEM fuel pressure regulator and check valve mounting bracket FLAT WASHER. On the inner side of the #3 carb hat, XJ650 Turbo models use a special bracket to hold both the fuel pressure regulator and the check valve. This washer is used with the HCP5386, HCP21407, or HCP21408 mounting nut. Use 1 per carb. Each:
$ 4.50

HCP21409 Aftermarket fuel pressure regulator and check valve mounting bracket FLAT WASHER, 18-8 stainless steel. On the inner side of the #3 carb hat, XJ650 Turbo models use a special bracket to hold both the fuel pressure regulator and the check valve. This washer is used with the HCP5386, HCP21407, or HCP21408 mounting nut. Use 1 per carb. Each:
$ 2.95

HCP21410 Aftermarket fuel pressure regulator and check valve mounting bracket FLAT WASHER, black-oxide coated alloy steel. On the inner side of the #3 carb hat, XJ650 Turbo models use a special bracket to hold both the fuel pressure regulator and the check valve. This washer is used with the HCP5386, HCP21407, or HCP21408 mounting nut. Use 1 per carb. Each:
$ 2.95


MIKUNI CARB LOWER END PARTS:

MIKUNI FUEL AND AIR JETS:

MIKUNI MAIN FUEL JETS:

NOTE: stock Mikuni XJ series carbs used the following original main fuel jet sizes:

#97.5 is used on:
1986-90 YX600 Radian models

#100 is used on:
1985 all XJ700-X models (*see note below)
1984-85 XJ900 F, N (Switzerland only)
1991-94 XJ900 models with BS36 carbs

#102.5 is used on:
XJ550L (1984) on cylinders #3 and #4 (***see note below)
1984-85 FJ600 models on the #3 and #4 cylinders
1984-91 XJ600 models on the #3 and #4 cylinders
1992-98 XJ600 Seca II North American models (some non-North American models used #105 jets on the outer carbs)
XJ900RK US & Canada with BS35 carbs
XJ900RL and XJ900P (31A models) with BS35 carbs

#105 is used on:
XJ550L (1984) on cylinders #1 and #2 (***see note below)
1984-85 FJ600 models on the #1 and #2 cylinders
1984-91 XJ600 models on the #1 and #2 cylinders
1992-98 XJ600 Seca II models (some non-North American models used #105 jets on the outer carbs and #102.5 jets on the center carbs)
1986 all XJ700-X models and all XJ750-X

#107.5 is used on:
1986-88 FZ600 models
XJ900 most 1984-90 models with BS36 carbs (except USA, Canada, of Switzerland)

#110 is used on:
1980-81 XS1100 LG/LH/SH models

#112.5 is used on:
XJ550 1981-83 North American all models
XJ1100 all models

#115 is used on:
1980-81 XS1100 standard models for cylinders #1 and #4

#120 is used on:
1980-81 XS1100 standard models for cylinders #2 and #3

#125 is used on:
XJ650 Turbo carbs for all cylinders (**see note below)
1980-81 XS1100 SH model

#127.5 is used on:
XJ650 Turbo carbs for cylinders #1 and #4 (**see note below)

#130 is used on:
1978-79 all XS1100 models (****see note below)

#132.5 is used on:
XJ650 Turbo carbs for cylinders #2 and #3 (**see note below)

#137.5 is used on:
1978-79 all XS1100 models (****see note below)

#140 is used on:
1978-79 all XS1100 models (****see note below)


NOTES:
* there are discrepancies between the parts manuals and the service manual information on the size of the 1985 XJ700-X main fuel jets; one source claims these carbs were equipped with #100 main fuel jets, while other sources claim a #105 size main fuel jet. Our experience leads us to believe that the correct size for the XJ700-X and XJ750-X models is the #105 size for both the 1985 and 1986 model years.

** there are discrepancies between the parts manuals and the service manual information on the size of the 1982-83 XJ650 Turbo main fuel jets; one source claims these carbs were equipped with #127.5/#132.5 combination of main fuel jets as described above, while other sources claim #125 size main fuel jets were used in all cylinders. Original carbs that we have explored have the #127.5/#132.5 combination of jets as shown above.

*** although listed this way in factory service manuals, we believe this is a misprint, and the correct configuration should be:
- the #102.5 on XJ550L (1984) on cylinders #1 and #4
- the #105 on XJ550L (1984) on cylinders #2 and #3

**** depending on model of carbs used, these bikes could have been equipped with either the #130, #137.5, or the #140 main fuel jets. The #137.5 size seems to be what was equipped from the factory on North American models.

***** there is quite a bit of discrepancy between the service manual and parts diagram specifications for the correct size(s) of the 1980-81 XS1100 main fuel jets:

Service manuals:
1980-81 Standard models: #115 jets on the outer carbs and #120 jets on the center carbs.
1980-81 Special models: #110 jets on the outer carbs and #120 jets on the center carbs.
1980-81 Midnight Special models: #110 jets on the outer carbs and #120 jets on the center carbs.

Parts books:
1980-81 Standard models: #115 jets on the outer carbs and #120 jets on the center carbs.
1980 Special models: #120 jets on the outer carbs and #125 jets on the center carbs.
1981 Special models: #110 jets on all four carbs.
1980-81 Midnight Special models: #110 jets on all four carbs.



All the other sizes are for "tuning" or re-jetting purposes when changing intakes or exhaust systems.

HCP6900 OEM Mikuni MAIN FUEL JET #105
HCP6901 OEM Mikuni MAIN FUEL JET #107.5
HCP6902 OEM Mikuni MAIN FUEL JET #110

HCP6904 OEM Mikuni MAIN FUEL JET #115
HCP6905 OEM Mikuni MAIN FUEL JET #117.5
HCP6906 OEM Mikuni MAIN FUEL JET #120
HCP6908 OEM Mikuni MAIN FUEL JET #125
HCP6909 OEM Mikuni MAIN FUEL JET #127.5
HCP6910 OEM Mikuni MAIN FUEL JET #130
HCP6911 OEM Mikuni MAIN FUEL JET #132.5
HCP6912 OEM Mikuni MAIN FUEL JET #135
HCP6913 OEM Mikuni MAIN FUEL JET #137.5
HCP6914 OEM Mikuni MAIN FUEL JET #140
HCP6915 OEM Mikuni MAIN FUEL JET #142.5
HCP6916 OEM Mikuni MAIN FUEL JET #145
HCP6917 OEM Mikuni MAIN FUEL JET #147.5
HCP6918 OEM Mikuni MAIN FUEL JET #150

All of the above OEM Mikuni Main Fuel Jets are priced as follows:
$ 6.95 each
or
$ 24.95 per set of 4


HCP6919 Aftermarket Mikuni MAIN FUEL JET #90
HCP6920 Aftermarket Mikuni MAIN FUEL JET #95
HCP6921 Aftermarket Mikuni MAIN FUEL JET #100
HCP6922 Aftermarket Mikuni MAIN FUEL JET #102.5
HCP6923 Aftermarket Mikuni MAIN FUEL JET #105
HCP6924 Aftermarket Mikuni MAIN FUEL JET #107.5
HCP6925 Aftermarket Mikuni MAIN FUEL JET #110
HCP6926 Aftermarket Mikuni MAIN FUEL JET #112.5
HCP6927 Aftermarket Mikuni MAIN FUEL JET #115
HCP6928 Aftermarket Mikuni MAIN FUEL JET #117.5
HCP6929 Aftermarket Mikuni MAIN FUEL JET #120
HCP6930 Aftermarket Mikuni MAIN FUEL JET #122.5
HCP6931 Aftermarket Mikuni MAIN FUEL JET #125
HCP6932 Aftermarket Mikuni MAIN FUEL JET #127.5
HCP6933 Aftermarket Mikuni MAIN FUEL JET #130
HCP7180 Aftermarket Mikuni MAIN FUEL JET #132.5
HCP6934 Aftermarket Mikuni MAIN FUEL JET #135
HCP6936 Aftermarket Mikuni MAIN FUEL JET #140
HCP6937 Aftermarket Mikuni MAIN FUEL JET #142.5
HCP6938 Aftermarket Mikuni MAIN FUEL JET #145
HCP6939 Aftermarket Mikuni MAIN FUEL JET #147.5
HCP6940 Aftermarket Mikuni MAIN FUEL JET #150
HCP6941 Aftermarket Mikuni MAIN FUEL JET #152.5
HCP6942 Aftermarket Mikuni MAIN FUEL JET #155
HCP6943 Aftermarket Mikuni MAIN FUEL JET #157.5
HCP6944 Aftermarket Mikuni MAIN FUEL JET #160
HCP6945 Aftermarket Mikuni MAIN FUEL JET #165
HCP6946 Aftermarket Mikuni MAIN FUEL JET #170
HCP6947 Aftermarket Mikuni MAIN FUEL JET #175
HCP6948 Aftermarket Mikuni MAIN FUEL JET #180

All of the above aftermarket Mikuni main fuel jets (except HCP6932) are priced as follows:
$ 4.95 each
or
$ 18.95 per set of 4

HCP6932 Aftermarket Mikuni MAIN FUEL JET #127.5
$ 6.95 each
or
$ 24.95 per set of 4



HCP5186 OEM Mikuni main jet SHIM WASHER, correct copper shim washer fits under the main fuel jet, in-between the jet and the emulsion tube. Fits all XJ550, 1984-85 FJ600, 1986-88 FZ600, 1986-90 YX600 Radian, XJ650 Turbo, XJ700-X, XJ750-X, all XJ900RK, RL, N/FN, and F models, XJ1100, and all XS1100 models. Each:
$ 2.95

HCP15596 Aftermarket Mikuni main jet SHIM WASHER, correct copper shim washer fits under the main fuel jet, in-between the jet and the emulsion tube. Fits all XJ550, 1984-85 FJ600, 1986-88 FZ600, 1986-90 YX600 Radian, XJ650 Turbo, XJ700-X, XJ750-X, all XJ900RK, RL, N/FN, and F models, XJ1100, and all XS1100 models. Each:
$ 1.95



HCP22383 OEM Mikuni main jet HOLDER-SPACER TUBE, this is the 1” long brass tube that screws into the carb body, and then accepts the main fuel jet at the other end. Fits all 1992-98 XJ600 Seca II models. Each:
$ 17.95

HCP22381 OEM Mikuni main jet holder-spacer tube copper CRUSH WASHER, seals the tube to the carb body. A must-replace item when doing a carb rebuild. Fits all 1992-98 XJ600 Seca II models. Each:
$ 2.95

HCP22380 OEM Mikuni main jet FLAT RUBBER RING, seals the main fuel jet to the holder-spacer tube. A must-replace item when doing a carb rebuild. Fits all 1992-98 XJ600 Seca II models. Each:
$ 6.95



MIKUNI MAIN AIR JETS:

Alas, the Mikuni BSxx series carbs used on XJ models---unlike their cousins the Hitachi HSCxx series carbs---did not have replaceable main air jets. The main air jets on these models are in the carb throat, facing the airbox, and are a small, brass pressed-in tube that is non-replaceable, and which we suggest you do NOT try to modify by drilling or enlarging.

And just in case anyone is wondering, here are the sizes of these non-removable main air jets in the various models:

#45: XJ900 all RK, RL, N/FN, and F models
#70: XJ550 all models, 1984-85 FJ600, 1984-91 XJ600, and XJ650 Turbo models.
#120: XJ700-X all models and XJ750-X all models
#140: XJ1100 and all XS1100 models



MIKUNI PILOT FUEL JETS:

ef) OEM and aftermarket Mikuni brass PILOT FUEL JETS, sizes as follows, fits models as shown below.

NOTE: stock Mikuni XJ series carbs used the following original pilot fuel jet sizes:

#17.5 XJ600 Seca II (1992-98)
#30 1986-88 FZ600 and 1986-90 YX600 Radian
#32.5 XJ650LK Turbo (1983) note that this size should also be used on 1982 Turbo models if the 1983 “power-up” kit has been retrofitted onto a 1982 model.
#35 XJ550 all 1981-83 models (except Euro), 1984-85 FJ600, XJ650LJ Turbo (1982), and XJ700-X* all models
#37.5 XJ550 Euro, XJ750-X, and XJ900RK** USA & Canada only
#40 XJ550L (1984) model, 1984-91 XJ600, and all XJ900RL, N/FN, and F models except USA or Canada
#42.5 1979-81 XS1100 all models***
#45 1978 XS1100 models
#47.5 XJ1100 models

All the other sizes are for "tuning" or re-jetting purposes when changing intakes or exhaust systems.

NOTES:
* there are discrepancies between the parts manuals and the service manual information on the size of the XJ700-X pilot fuel jets; one source claims these carbs were equipped with #35 pilot fuel jets, while other sources claim a #37.5 size pilot fuel jet. Our research and experience shows that the XJ700-X models always used the #35 pilot fuel jets, while the XJ750-X models used #37.5 pilot fuel jets.

** there are discrepancies between the parts manuals and the service manual information on the size of the XJ900RK pilot fuel jets; one source claims these carbs were equipped with #37.5 pilot fuel jets, while other sources claim a #40 size pilot fuel jet.

*** although all 1979-81 XS1100 models uses the same size jet, the jet type differs due to the presence (or not) of the fuel inlet holes in the shaft of the pilot jet. It is critical that you verify which style carbs you have:

http://www.xs11.com/forum/showthread.php?t=35964

Carb sets that require the use of the bleed holes in the pilot jet shafts will have a drilled passage from the main jet boss in the carb body straight thru to the pilot jet boss in the carb body. Look at the 6th picture down on that page, it shows the “early” style carbs that have the drilled passage hole between the main and pilot fuel jet passages, and thus requires the use of the “shaft with holes” style of pilot fuel jet (this style of carbs also requires the use of the HCP7376 rubber block-off plug that seals up that pilot fuel opening at the bottom of the jet).


NOTE: ensuring that your pilot fuel circuit is internally clear and free is one of the most difficult tasks to perform on these carbs due to its incredibly small size (so fuel varnish will accumulate and solidify in there over time):

http://www.xj4ever.com/inside your carbs.pdf

To make sure that your internal pilot fuel circuit is truly “zestfully clean” after your clearing efforts:

1. Drill out an old pilot fuel jet so that the straw from the carb cleaner fits snuggly in the hole (or some other suitable method of “sealing off” a straw into the pilot fuel jet passage where the jet screws into the carb body).
2. Leave the pilot air jet in, but block it off with a wooden q-tip that is covered with a bit of heat shrink tubing (or use your finger to firmly block it off).
3. Install the pilot screw without its o-ring, and set it to about 2.5 turns out from soft bottoming.
4. Blast the carb cleaner through the modified pilot jet and it should look something like this:




By the way, when using the spray-stream method of checking the passage, don't even THINK of putting your eye or face anywhere even NEAR the outflow path, unless you like a painful and potentially serious trip to the emergency room.



HCP22378 OEM Mikuni PILOT FUEL JET #17.5. This jet does not have fuel passage holes within the jet shaft.
$ 6.95 each

HCP5223 OEM Mikuni PILOT FUEL JET #32.5. This jet does not have fuel passage holes within the jet shaft.
$ 19.95 each

HCP5183 OEM Mikuni PILOT FUEL JET #35. This jet does not have fuel passage holes within the jet shaft.
$ 19.95 each

HCP6890 OEM Mikuni PILOT FUEL JET #37.5. This jet does not have fuel passage holes within the jet shaft.
$ 19.95 each

HCP23312 OEM Mikuni PILOT FUEL JET #42.5. This jet does not have fuel passage holes within the jet shaft.
$ 21.95 each

HCP6889 OEM Mikuni PILOT FUEL JET #47.5. This jet does not have fuel passage holes within the jet shaft.
$ 21.95 each


HCP22595 Aftermarket Mikuni PILOT FUEL JET #17.5. This jet does not have fuel passage holes within the jet shaft.
HCP22596 Aftermarket Mikuni PILOT FUEL JET #20. This jet does not have fuel passage holes within the jet shaft.
HCP22597 Aftermarket Mikuni PILOT FUEL JET #22.5. This jet does not have fuel passage holes within the jet shaft.
HCP6949 Aftermarket Mikuni PILOT FUEL JET #30. This jet does not have fuel passage holes within the jet shaft.
HCP6950 Aftermarket Mikuni PILOT FUEL JET #32.5. This jet does not have fuel passage holes within the jet shaft.
HCP6951 Aftermarket Mikuni PILOT FUEL JET #35. This jet does not have fuel passage holes within the jet shaft.
HCP6952 Aftermarket Mikuni PILOT FUEL JET #37.5. This jet does not have fuel passage holes within the jet shaft.
HCP6953 Aftermarket Mikuni PILOT FUEL JET #40. This jet does not have fuel passage holes within the jet shaft.
HCP6954 Aftermarket Mikuni PILOT FUEL JET #42.5. This jet does not have fuel passage holes within the jet shaft.
HCP23308 Aftermarket Mikuni PILOT FUEL JET #42.5. This jet has the 6 fuel passage holes within the jet shaft.
HCP6955 Aftermarket Mikuni PILOT FUEL JET #45. This jet does not have fuel passage holes within the jet shaft.
HCP23309 Aftermarket Mikuni PILOT FUEL JET #45. This jet has the 6 fuel passage holes within the jet shaft.
HCP6956 Aftermarket Mikuni PILOT FUEL JET #47.5. This jet does not have fuel passage holes within the jet shaft.
HCP22310 Aftermarket Mikuni PILOT FUEL JET #47.5. This jet has the 6 fuel passage holes within the jet shaft.
HCP6957 Aftermarket Mikuni PILOT FUEL JET #50. This jet does not have fuel passage holes within the jet shaft.
HCP22311 Aftermarket Mikuni PILOT FUEL JET #50. This jet has the 6 fuel passage holes within the jet shaft.
HCP6958 Aftermarket Mikuni PILOT FUEL JET #52.5. This jet does not have fuel passage holes within the jet shaft.
HCP6959 Aftermarket Mikuni PILOT FUEL JET #55. This jet does not have fuel passage holes within the jet shaft.

All of the above aftermarket Mikuni pilot fuel jets (except for HCP6957) are priced as follows:
$ 5.95 each
or
$ 21.95 per set of 4


HCP6957 Aftermarket Mikuni PILOT FUEL JET #50. This jet does not have fuel passage holes within the jet shaft.
$ 8.95 each
or
$ 29.95 per set of 4



HCP7376 Aftermarket Mikuni pilot fuel jet bore RUBBER PLUG. NOTE: there are 2 different types of Mikuni BS34 carbs that were used on the XS1100 models. The early models have exposed idle mixture screws and there is a hole drilled between the main fuel jet and the pilot fuel jet. These “drilled” versions require the use of this plug over each pilot fuel jet port. The early style carbs usually have a larger main fuel jet, since the pilot fuel jet fuel supply flows thru the main fuel jet. The later model carbs have the encased or recessed idle mixture screw, smaller main fuel jets (#110 - #120) and NO hole is drilled from the main fuel jet galley to the pilot fuel jet. These version carbs should not use the plugs installed in the pilot jet hole, as the pilot jet pulls its fuel supply directly from the fuel bowl. The later model also uses a smaller main fuel jet (as it no longer needs to do “double-duty” in also supplying the pilot fuel jet). You can review the two different style carbs here: http://www.xs11.com/forum/showthread.php?t=35964
Each:
$ 4.50

HCP7376SET4 Aftermarket Mikuni pilot fuel jet bore RUBBER PLUG, set of 4:
$ 17.95



MIKUNI PILOT AIR JETS:

Pilot air jets on the Mikuni BSxx series carbs are replaceable and are located under the diaphram cover on all XJ550 models and XJ650 Turbo models, and in the carb throat (facing the airbox) on all XJ700-X, XJ750-X, all XJ900RK, RL, N/FN, and F models, and XJ1100 models.

ef) OEM and aftermarket Mikuni brass PILOT AIR JETS, sizes as follows, fits all XJ550, XJ650 (except Turbo), all XJ700-X and XJ750-X, XJ900RK, and XJ1100 models.

NOTE: stock Mikuni XJ series carbs used the following original pilot air jet sizes:

#135 1986-88 FZ600 and 1986-90 YX600 Radian models
#140 XJ700-X and XJ750-X models
#145 XJ600 Seca II models (1992-98)
#155 XJ550L (1984) models, 1984-91 XJ600, and 1983 XJ650 Turbo models (*see note below)
#160 1984-85 FJ600 models, and all XJ900 all RK, RL, N/FN, and F models
#165 XJ550 Maxim models (1981-83), 1982 XJ650 Turbo models (*see note below)
#170 XJ550 Seca, XJ550 Euro, XJ650 Turbo*, and XJ1100 models
#180 1978-79 XS1100 models (**see note below)
#185 1980-81 XS1100 all models.

NOTES:
* the Yamaha parts books reference the use of #165 pilot air jets for the 1982 XJ650 Turbo models, and #155 pilot air jets for the 1983 XJ650 Turbo models. Original carbs that we have explored have the #170 jets as shown above.

** the Yamaha service manual specifies the #180 size for all 1978-79 models, while the parts books specify the #210 size for 1978 models and the #180 size for the 1979 models.


All the other sizes are for "tuning" or re-jetting purposes when changing intakes or exhaust systems.


HCP22379 OEM Mikuni PILOT AIR JET #145
$ 8.95 each

HCP5218 OEM Mikuni PILOT AIR JET #155
$ 11.95 each

HCP6892 OEM Mikuni PILOT AIR JET #160
$ 11.95 each

HCP5206 OEM Mikuni PILOT AIR JET #165
$ 11.95 each

HCP5171 OEM Mikuni PILOT AIR JET #170
$ 11.95 each


HCP6960 Aftermarket Mikuni PILOT AIR JET #110
HCP6961 Aftermarket Mikuni PILOT AIR JET #112.5
HCP6962 Aftermarket Mikuni PILOT AIR JET #115
HCP6963 Aftermarket Mikuni PILOT AIR JET #117.5
HCP6964 Aftermarket Mikuni PILOT AIR JET #120
HCP6965 Aftermarket Mikuni PILOT AIR JET #122.5
HCP6966 Aftermarket Mikuni PILOT AIR JET #125
HCP6967 Aftermarket Mikuni PILOT AIR JET #130
HCP6968 Aftermarket Mikuni PILOT AIR JET #135
HCP6969 Aftermarket Mikuni PILOT AIR JET #137.5
HCP6970 Aftermarket Mikuni PILOT AIR JET #140
HCP6971 Aftermarket Mikuni PILOT AIR JET #142.5
HCP6972 Aftermarket Mikuni PILOT AIR JET #145
HCP6973 Aftermarket Mikuni PILOT AIR JET #147.5
HCP6974 Aftermarket Mikuni PILOT AIR JET #150
HCP8409 Aftermarket Mikuni PILOT AIR JET #155
HCP13972 Aftermarket Mikuni PILOT AIR JET #157.5
HCP7181 Aftermarket Mikuni PILOT AIR JET #160
HCP8410 Aftermarket Mikuni PILOT AIR JET #162.5
HCP7487 Aftermarket Mikuni PILOT AIR JET #165
HCP8411 Aftermarket Mikuni PILOT AIR JET #167.5
HCP7182 Aftermarket Mikuni PILOT AIR JET #170
HCP8412 Aftermarket Mikuni PILOT AIR JET #172.5
HCP8413 Aftermarket Mikuni PILOT AIR JET #175
HCP8414 Aftermarket Mikuni PILOT AIR JET #177.5
HCP23316 Aftermarket Mikuni PILOT AIR JET #180. These are for 1979 XS1100 models only.
HCP23318 Aftermarket Mikuni PILOT AIR JET #210. These are for 1978 XS1100 models only.

All of the above Aftermarket Mikuni Pilot Air Jets are priced as follows:
$ 6.95 each
or
$ 24.95 per set of 4




WHAT ABOUT RE-JETTING FOR PODS, ETC?:

Before we even start down this bumpy road, let's get this out of the way: changing the mufflers (only) will generally not require re-jetting, as the stock mufflers are pretty darn free-flowing as it is. The major airflow restrictions (by design) in these engines is on the INTAKE side (the airbox system and its pleated paper filter). Changing to a high-flow air filter (like a K&N) will definitely require increased fuel jet sizing.

That being said, all of these bikes were jetted a bit lean from the factory, in order to satisfy EPA emissions requirements of that era. So even a stock engine can benefit from slightly larger fuel jets; for example, a stock XJ550 (USA model) increasing fuel jet sizes to #115 on the mains (from the stock #112.5 size) and to a #37.5 on the pilot (stock is a #35 size) can be beneficial. Note that the pilot jet size is not as critical as the main jet size, since the pilot circuit mixture screw allows you to “open up” the pilot circuit independent of the jet size.


But what about when you do make other intake/exhaust system changes? It's a question we get asked often and unfortunately, one that we cannot answer honestly about your specific bike besides with "it depends".

Which is a nice way of saying "you're about to enter the seventh circle of hell......."!

Carb jet tuning required by aftermarket modifications is somewhat of a black art, part science, part skill, part luck. It depends on the current state of tune of your engine, your altitude, the mix of aftermarket parts on your bike, etc........a lot of variables.

The best advice we can offer is: Just Say No!. Don't do it! Leave everything stock!

But, since most people---with good reason, I might add---don't always listen to our well-intentioned advice, then the next best recommendation we can offer is: "if you want more power get a bigger bike!".

And since that doesn't cut it with many owners, either, for the remaining stalwarts out there who insist on "experimenting" with aftermarket intake and exhaust systems, here's the best information that we've come across to give you some GUIDANCE, which you should take as just that, and not as ANSWERS, because it isn't!

Definitely not plug-and-play:



And some pod filters make a difficult situation even worse.........read all about it:

http://www.caferacer.net/forum/technical/19639-pod-filter-thread-geeto.html

Yoji himself cautions against it:

http://xjbikes.com/forums/index.php?attachments/mikuni-article-jpg.15101



Also, if you’ve ever wondered what the numbers on your jets refer to:

- on Hitachi fuel jets, the numbers refer to the actual physical size of the passage hole expressed in millimeters, i.e. a #114 fuel jets is 1.14mm in diameter, a #42 fuel jet is 0.42mm in diameter, etc.

- on Mikuni fuel jets, the numbers are a measurement of the volume (cc’s of gasoline) that will flow thru the jet when poured in from a height of 50cm.

- we do not know what air jet numbers refer to…….although we suspect it is a volume of air that can pass through the jet at some level of vacuum. Anyone who has insight into this issue please let us know more!



MAIN FUEL JET SIZE CHANGES NEEDED PER TYPICAL MODIFICATION:

Typical Exhaust Changes:

+2 main fuel jet size for custom 4-into-2 exhaust

or

+4 main fuel jet sizes for 4-into-1 exhaust

or

+4 main jet sizes for no muffler (open headers)


Typical Intake Changes:

+2 main fuel jet sizes for single K&N filter (inside a stock airbox)

or

+2 main fuel jet size for drilling holes in the airbox with stock filter

or

+4 main fuel jet sizes for individual pod filters (no airbox)



Additional changes:

- Add up all the main fuel jet size increases and subtract 2 sizes.

- Decrease main fuel jet size by 2 sizes per every 2000' above sea level.

- Under a mis-match condition, such as when using pod filters with a 100% stock exhaust, or 4-into-1 header with stock filter and air box, then subtract 2 main fuel jet sizes.


PILOT FUEL JET SIZES CHANGES NEEDED PER TYPICAL MODIFICATION:

Pilot fuel jet size changes are related only to the change in main fuel jet sizes according to the main fuel jet size formula described above. Note that this pilot fuel jet rule is for the main fuel jet size change BEFORE any main fuel jet altitude compensation is factored in:

Increase the pilot fuel jet size +1 for every +3 main fuel jet size increases.

Additional changes:

- Decrease pilot fuel jet size by 1 for every 6000' above sea level.



PRECAUTIONS:

- Make sure your carbs are in perfect working order before making jet changes....meaning fully cleaned internally and rebuilt, operating properly in their stock configuration, proper sized air jets and needles, etc. Otherwise, you'll like find that all of your efforts are going to be a HUGE waste of time.

- Check plug color often and adjust as needed, 2 main fuel jet sizes at a time and 1 pilot fuel jet size at a time. Bright white plug insulators are a sign of an overly lean fuel mixture condition and WILL cause damage to your engine over time, up to and including engine seizure!

- Synch the carbs after each jet change.

- Make sure the floats are set correctly

- Seriously consider purchasing a Colortune Plug Tuning kit.

- You may find it necessary to make changes to the size or shimming of the main jet needle. There are no guidelines on what or how to do these changes, this is true trial-and-error tuning!



EXAMPLE:

A 1982 XJ550RJ Seca using an aftermarket Supertrapp 4-into-1 exhaust and a single K&N air filter in the stock, unmodified airbox. Bike is primarily operated at an altitude of 2600 feet above sea level.

XJ550 Seca Stock Mikuni BS28-series Carb Jetting:

#112.5 Main Fuel Jet
#35 Pilot Fuel Jet
#70 Main Air Jet
#170 Pilot Air Jet
4GZ11 Needle


MAIN FUEL JET SIZE CALCULATIONS:

Changes made:

Exhaust:
4 into 1 with Supertrapp = +4 Sizes Main Fuel Jet

Intake:
K&N Pod Filters = +4 sizes Main Fuel Jet
----------------------------
Equals: +8 main fuel jet sizes above baseline
Subtract: -2 main fuel jet size per formula above
----------------------------
Equals: +6 main fuel jet sizes due to modifications, thus:

Stock main fuel jet size is: #112.5
+ 6 additional sizes
= a #118.5 main fuel jet size
---------------------------
Subtract: -2 main fuel jet sizes for Altitude of 2500' Average

= #118.5 calculated from above
-2 jet sizes for altitude adjustment

= a #116.5 main fuel jet size.

NOTE: unfortunately, Mikuni fuel jets only come in 2.5mm size differences, so the calculated size that you need may not be available, in which case you will have to order the closest size available and then fiddle with your pilot mixture screw settings to find a "sweet spot" that is not overly rich at idle or off-idle.




PILOT FUEL JET SIZE CALCULATIONS:

The formula is: +1 pilot jet size increase for every +3 main jet sizes increased.

Stock pilot fuel jet size is: #35
+ 2 additional jet sizes (since we went up +6 main fuel jet sizes before the altitude compensation was factored in):

= a #37 pilot fuel jet size.

Note that no altitude compensation is needed on the pilot fuel jet since our elevation is less than 6000' a-s-l.


------------------------------

RESULT:

A #116.5 Main Fuel Jet and #37 Pilot Fuel Jet is A GOOD STARTING POINT.

******************************************************

Note that the above calculations do NOT take into account any possible changes in the sizes of the main or pilot air jets, the main needle or main needle jet size, and thus are additional variables and opportunities for tuning excellence. These are areas which are largely unexplored by most tuners, but logically should allow for additional fine tuning or additional rage and frustration.........


Normally, changing to an aftermarket exhaust does NOT require re-jetting, (or minimal re-jetting) as almost ALL of the airflow restriction in the airflow path thru the engine (meaning: ATMOSPHERE > AIRBOX > FILTER > AIRBOX BOOTS > CARBS > INTAKE MANIFOLDS > CYLINDER HEAD PASSAGES > EXHAUST SYSTEM > BACK OUT INTO THE ATMOSPHERE) is within the intake side of this air flow path, and primarily within the stock airbox/air filter. Your stock EXHAUST system can already flow more air volume than the stock INTAKE system allows.

Thus changing only the stock EXHAUST system, with no changes to the intake side of the heads, normally makes NO DIFFERENCE IN TOTAL AIRFLOW, and "no difference in total airflow" means "no difference in TOTAL FUEL FLOW" either, and thus bigger jets are not needed.


But once you start freeing up the INTAKE side of the entire system, you will produce more system airflow, even with a stock exhaust system (because, the stock exhaust system has the capability to flow more air through it than what the stock intake system allows).

This is why re-jetting is usually needed even if you keep the stock airbox and the stock exhaust, but use a K&N low-restriction filter, or even if you drill holes in the stock airbox, or leave the filter lid off.

All such actions free up the intake side airflow restrictions; the stock exhaust will move this additional airflow, and without providing addition FUEL flow to match the increased airflow (within limits, an engine will gobble up the maximum amount of airflow that it can; an internal combustion engine is actually just a self-powered AIR PUMP) then the engine will run "lean"---meaning not enough fuel to match the amount of airflow that the engine can (and now will) gulp.

Most pod type filters allow for vastly increased airflow, and thus require fuel re-jetting, and although no one really talks much about it, probably also require AIR JET changes to match the additional fuel flow, but since no one likes to deal with two parameters at once, it becomes a "tuning nightmare".


BUT, when you read all of the common symptoms of people who use pods, you quickly come to the conclusion that it's not possible to reproduce the stock "smooth in all rpm ranges" engine response. The reality is that you SHOULD be able to match it pretty darn closely, even with the increased airflow through the system, but ONLY changing the fuel jets isn't going to accomplish that. There are also air jets in the system, and they are there for a reason, as well as needle tapers and vacuum piston responsiveness issues.


For further insights and understanding, the Holy Grail (meaning: the whole miserable, un-varnished truth of what a real chore carb tuning is going to be, written by people who actually know what they're talking about, rather than by people who are trying to sell you something) can be found at:

www.factorypro.com

and then click on the "Product Support/Technical Support" link at the top of the page, then on the "Motorcycle Tuning Tech" link, and then the "CV Carb Tuning" link........and then read, weep, study, and do....if you still dare to! HINT: if reading through it makes you think to yourself "sheesh, this sounds like an incredible amount of effort!", well, you're right! That's just some of the joys (and pitfalls) of getting to play "tuning engineer", which is what you're going to be doing. Yamaha probably has 10 of those types of guys on staff, and millions of dollars of test equipment, both physical and computer-aided, that allowed them to get the mixture settings just right---from an overall drivability AND power output standpoint----and now, since you're changing the airflow parameters thru the engine, you'll have to figure it all out "from scratch", but WITHOUT the benefit of 10 trained engineers and all that test equipment and experience.

That's why we warn you that setting up a bike for pods can be quite a bit of trial-and-error procedure. You can make the calculations according to what is shown in that guideline and then order the jets that the "formula" recommends, and that should serve as a good STARTING POINT............you may (or may not!) have to do more tuning and trial-and-erroring substitution of different jet sizes, etc. to get it performing to you satisfaction, with the recognition that you may ALWAYS end up with a situation that has some kinds of trade-offs.....lazy at the lower end but runs well at mid/upper-ranges, or runs well at the lower end but a "flat-spot" at some other rpm range, etc. Unfortunately there is no magic formula........you might want to read through the factorypro.com article that I list at the end of that section, and you will get a better understanding of what is involved to get the carbs set-up properly in a non-stock configuration.

As one of our favorite experts says about pod filters: "Get a Rubik's Cube instead.....it's less trouble and actually has an eventual solution!"




MIKUNI MAIN JET NEEDLES:

Attached to the vacuum piston assembly is the MAIN JET NEEDLE, and as the vacuum piston is raised or lowered due to the vacuum signal through the carb throat, the main jet needle is raised or lowered into the brass emulsion tube (also described as the "main jet" or "power valve" in some technical literature). These jet needles control the overall fuel flow in the main jet circuit of each carb.

Although many of these precisely made aluminum needles are not currently available, part of your rebuild efforts should be to verify that the correct size needles are installed in your carbs, and that all of the needles are the same size. The needle "size" is inscribed on the shaft of the needle, and normally takes a 3- to 6-character (letters and numbers) designation. Although most Mikuni needles are interchangeable between all types of the Mikuni BS-series carbs, their different "sizes" are designed to be used in specific applications as determined by factory design engineers.

Example: needle 4GNT5 --- the first position (4) denotes the needle series (which is the overall length of the needles; in this case somewhere between 40.00 and 49.99 mm in length). The next 2- or 3-positions (GNT) denotes that it is a three-taper needle, each taper increasing in angle as you go through the alphabet from A-to-Z (A = least taper angle, Z = greatest taper angle). The distance of where each different taper point starts (or ends) is not specified, but it is somewhat standardized for each “needle series” (= overall length range of the needle). The last position, if numerical, may indicate either:

a) a revision to the needle design for production-tracking purposes.
b) on needles with multiple clip (installed height) positions, the last position specifies the stock clip position.


Original main needle size configurations are as follows:

NOTE: all XJ550 and XJ650 Turbo main jet needles are the same length, and thus could be interchanged if one desired to try and do so hard-core carb tuning adjustments via needle swaps. The XJ550 Maxim needles (4GN15) are leaner (fatter shaft) than XJ550 Seca needles (4GZ11) up until mid-point, then they are the same OD. However, the XJ550 Maxim needles get “richer” much quicker than XJ550 Seca needles; the XJ550 Maxim needles have a more pronounced taper to them. XJ650 Turbo needles (4DPS39) than either of the XJ550 needles are, from start to finish. FJ600 needles (4PC4 or 4PC6) are much longer than the XJ550 or XJ650 Turbo needles and thus will not interchange properly.


4GN or 4GN15: used on all 1981-83 XJ550 Maxim carbs.

4GZ1 or 4GZ11: used on all North American XJ550 Seca carbs.

4GZ3: used on all Euro model XJ550 carbs.

4GZ16: used on all Oceania (Australia, NZ, etc.) model XJ550 carbs.

4B10: 1992-98 XJ600 Seca II (USA)

4BC-12, -13, -14, or -15: XJ600 Seca II 1996-98 UK

4CL8: used on all 1984-91 XJ600 (51H model/Germany) carbs.

4CP3: used on all 1984 XJ550 Maxim and 1984-91 XJ600 models on the #1, #3, and #4 carbs.

4CP4: used on all 1984-85 FJ600 models on the #1, #3, and #4 carbs.

4CP6: used on all 1984-85 FJ600 models on the #2 carb.

4CP7: used on all 1984 XJ550 Maxim and 1984-91 XJ600 Euro models on the #2 carb. Note: this is a multi-position (adjustable) needle, and the middle position is basically equivalent to the fixed-position (single slot) 4CP6 needle.

4DPS39: used on all XJ650 Turbo model carbs.

4HZ22: used on all XJ900RK carbs. This is a non-adjustable needle.

4HZ26: used on all XJ900RL and 1984-85 XJ900 F, N (Switzerland only) model carbs. This is an adjustable-position needle, and can be used on the XJ900RK models in place of the original 4HZ22 needle above. It offers far greater fine-tuning capabilities, as well as having a slightly "richer" profile than the 4HZ22 needle.

5CT or 5CTZ: 1992-95 XJ600 Seca II Canada and Australia

5FZ62: used on all XJ900 F, N, and FN (except Switzerland) model carbs.

5FZ10: used on all XJ900F carbs.

5FZ82: used on all XJ700-X non-California model carbs.

5FZ83: used on all XJ700-X California models, and all XJ750-X carbs.

*5GLZ-33: used on some XJ1100 carbs (4-position, adjustable height)
*5GLZ-34: used on some XJ1100 carbs (single position, non-adjustable)

5GZ6/3: used on all 1978-79 XS1100 carbs

51Z7: used on all 1980-81 XS1100 Standard models

5GL16: used on all 1980-81 XS1100 Special and Midnight Special models

*NOTE: XJ1100 models may have been equipped with either a single position (5GLZ-34) needle, or a multi-poition adjustable needle (5GLZ-33).


A complete Mikuni main jet "needle" is actually composed of a few component pieces:

- the aluminum needle (shaft only).
- the needle "ring cap", which is the plastic "head" of the needle.
- the ring cap retainer c-clip....retains the ring cap to the needle shaft.
- the needle tension spring seat metal or plastic "spacer washer".
- a needle tension spring, to keep the needle tensioned in its bore. NOTE: this is not the large vacuum piston spring, but a very small spring that fits directly under the diaphram spring seat plate, and over the top head (or "ring") of the needle).

The above components, once assembled together, become a "needle" in Mikuni-speak. The needle is placed into the recess of the vacuum piston, with a small thin alignment pin on the bottom of the needle "ring cap" providing proper alignment of the needle in the vac piston. A flat metal plate, secured by two very small screws, fits over the entire list of above components, and holds everything in place. This flat metal plate is the spring "seat" for both the small needle tension spring (below it), and for the large vacuum piston spring (above it).



HCP17591 Aftermarket Mikuni main jet NEEDLE, correct for all 1981-83 XJ550 Maxim model carbs (BS28 series), replacement for the original 4GN15 single-position needle. Use 1 per carb. Ring cap, c-clip, spring, and spring seat washer are not included. Each:
$ 21.95

HCP17591SET4 Aftermarket Mikuni main jet NEEDLE, correct for all 1981-83 XJ550 Maxim model carbs (BS28 series), replacement for the original 4GN15 single-position needle. Use 1 per carb. Ring cap, c-clip, spring, and spring seat washer are not included. Set of 4:
$ 79.95



HCP17590 Aftermarket Mikuni main jet NEEDLE, correct for all XJ550 Seca model carbs (BS28 series), replacement for the original 4GZ11 single-position needle. Use 1 per carb. Ring cap, c-clip, spring, and spring seat washer are not included. Each:
$ 21.95

HCP17590SET4 Aftermarket Mikuni main jet NEEDLE, correct for all XJ550 Seca model carbs (BS28 series), replacement for the original 4GZ11 single-position needle. Use 1 per carb. Ring cap, c-clip, spring, and spring seat washer are not included. Set of 4:
$ 79.95




HCP22382 OEM Mikuni main jet needle BRASS WELL PLUG, seals off the emulsion tube well and encloses the main jet needle bore. This domed “crown nut” can easily fracture when trying to remove it. It must be fluid-tight to perform properly! Fits all 1992-98 XJ600 Seca II models. Each:
$ 12.95

HCP5186 OEM Mikuni main jet needle brass well plug SHIM WASHER, correct thickness shim washer fits under the well plug, in-between the plug and the carb body. Fits all 1992-98 XJ600 Seca II models. Each:
$ 1.95

HCP15596 Aftermarket Mikuni main jet needle brass well plug SHIM WASHER, correct thickness shim washer fits under the well plug, in-between the plug and the carb body. Fits all 1992-98 XJ600 Seca II models. Each:
$ 1.50




HCP5220A OEM Mikuni main jet NEEDLE SET, correct for all XJ650 Turbo model carbs (BS30 series). Comes complete with the needle, needle cap, cap c-clip, spring, spring seat, retaining plate, and plate screws. Use 1 per carb. Ring cap, c-clip, spring, and spring seat washer are not included. Each:
$ 59.95

HCP17592 Aftermarket Mikuni main jet NEEDLE, correct for all XJ650 Turbo model carbs (BS30 series), replacement for the original 4DPS39 single-position needle. Use 1 per carb. Ring cap, c-clip, spring, and spring seat washer are not included. Each:
$ 19.95

HCP17592SET4 Aftermarket Mikuni main jet NEEDLE, correct for all XJ650 Turbo model carbs (BS30 series), replacement for the original 4DPS39 single-position needle. Use 1 per carb. Ring cap, c-clip, spring, and spring seat washer are not included. Set of 4:
$ 74.95



HCP17593 Aftermarket Mikuni main jet NEEDLE, correct for all XJ700-X non-California models (BS33 series), replacement for the original 5FZ82 single-position needle. Use 1 per carb. Ring cap, c-clip, spring, and spring seat washer are not included. NOTE: can also be used as a substitute for the XJ700-X California models and the XJ750-X models, which used the 5FZ83 needle. In such applications, we suggest that you slightly shim the needle to get the richer mixture that the 5FZ83 needle would provide. Each:
$ 21.95

HCP17593SET4 Aftermarket Mikuni main jet NEEDLE, correct for all XJ700-X non-California models (BS33 series), replacement for the original 5FZ82 single-position needle. Use 1 per carb. Ring cap, c-clip, spring, and spring seat washer are not included. Set of 4:
$ 79.95



HCP17594 Aftermarket Mikuni main jet NEEDLE, correct for all XJ900RK models carbs (BS35 series), replacement for the original 4HZ22 single-position needle. Use 1 per carb. Ring cap, c-clip, spring, and spring seat washer are not included. Each:
$ 21.95

HCP17594SET4 Aftermarket Mikuni main jet NEEDLE, correct for all XJ900RK models carbs (BS35 series), replacement for the original 4HZ22 single-position needle. Use 1 per carb. Ring cap, c-clip, spring, and spring seat washer are not included. Set of 4:
$ 79.95



HCP15792 Aftermarket Mikuni main jet NEEDLE, variable-position 5-groove version is correct for all XJ900RL model carbs (BS35 series), but will also work on the XJ900RK models as a replacement for the original single-position needle. This needle is equivalent to the factory 4HZ26 needle. Use 1 per carb. Ring cap, c-clip, spring, and spring seat washer are not included. Each:
$ 19.95

HCP15792SET4 Aftermarket Mikuni main jet NEEDLE, variable-position 5-groove version is correct for all XJ900RL model carbs (BS35 series), but will also work on the XJ900RK models as a replacement for the original single-position needle. This needle is equivalent to the factory 4HZ26 needle. Use 1 per carb. Ring cap, c-clip, spring, and spring seat washer are not included. Set of 4:
$ 74.95



HCP15790 Aftermarket Mikuni main jet NEEDLE, variable-position 5-groove version is correct for all 1985-1990 XJ900 N, FN, and F models carbs (BS36 series). This needle is equivalent to the factory 5FZ62 needle. Use 1 per carb. Ring cap, c-clip, spring, and spring seat washer are not included. Each:
$ 21.95

HCP15790SET4 Aftermarket Mikuni main jet NEEDLE, variable-position 5-groove version is correct for all 1985-1990 XJ900 N, FN, and F models carbs (BS36 series). This needle is equivalent to the factory 5FZ62 needle. Use 1 per carb. Ring cap, c-clip, spring, and spring seat washer are not included. Set of 4:
$ 79.95



HCP17595 Aftermarket Mikuni main jet NEEDLE, correct for some XJ1100 models carbs (BS34 series), replacement for the original 5GLZ-34 single-position needle. Use 1 per carb. Ring cap, c-clip, spring, and spring seat washer are not included. Each:
$ 21.95

HCP17595SET4 Aftermarket Mikuni main jet NEEDLE, correct for some XJ1100 models carbs (BS34 series), replacement for the original 5GLZ-34 single-position needle. Use 1 per carb. Ring cap, c-clip, spring, and spring seat washer are not included. Set of 4:
$ 79.95



HCP23285 Aftermarket Mikuni main jet NEEDLE, correct for all 1978-79 XS1100 model carbs (BS34 series), replacement for the original 5GZ6 5-position needle. Use 1 per carb. Ring cap, c-clip, spring, and spring seat washer are not included. Each:
$ 19.95

HCP23285SET4 Aftermarket Mikuni main jet NEEDLE, correct for all 1978-79 XS1100 model carbs (BS34 series), replacement for the original 5GZ6 5-position needle. Use 1 per carb. Ring cap, c-clip, spring, and spring seat washer are not included. Set of 4:
$ 74.95



HCP23288 Aftermarket Mikuni main jet NEEDLE, correct for all 1980-81 XS1100 Special and Midnight Special model carbs (BS34 series), replacement for the original 5GL16 5-position needle. Use 1 per carb. Ring cap, c-clip, spring, and spring seat washer are not included. Each:
$ 19.95

HCP23288SET4 Aftermarket Mikuni main jet NEEDLE, correct for all 1980-81 XS1100 Special and Midnight Special model carbs (BS34 series), replacement for the original 5GL16 5-position needle. Use 1 per carb. Ring cap, c-clip, spring, and spring seat washer are not included. Set of 4:
$ 74.95



HCP5176 OEM Mikuni main jet NEEDLE TENSION SPRING, fits all XJ550, 1984-85 FJ600, XJ650 Turbo, XJ700-X, XJ750-X, all XJ900RK, RL, N, FN, and F models, XJ1100, and 1980-81 XS1100 models. Use 1 per carb. Each:
$ 7.95

HCP5176SET4 OEM Mikuni main jet NEEDLE TENSION SPRING, set of 4:
$ 29.95


HCP17597 Aftermarket Mikuni main jet NEEDLE TENSION SPRING, fits all XJ550, 1984-85 FJ600, XJ650 Turbo, XJ700-X, XJ750-X, all XJ900RK, RL, N, FN, and F models, XJ1100, and 1980-81 XS1100 models. Use 1 per carb. Each:
$ 4.95

HCP17597SET4 Aftermarket Mikuni main jet NEEDLE TENSION SPRING, set of 4:
$ 18.95




HCP5177 OEM Mikuni main jet needle tension spring PLASTIC SEAT WASHER, fits all XJ550, 1984-85 FJ600, and XJ650 Turbo models. Use 1 per carb. Each:
$ 7.95

HCP5177SET4 OEM Mikuni main jet needle tension spring PLASTIC SEAT WASHERS. Set of 4:
$ 29.95


HCP17598 Aftermarket Mikuni main jet needle tension spring PLASTIC SEAT WASHER, fits all XJ550, 1984-85 FJ600, and XJ650 Turbo models. Use 1 per carb. Each:
$ 4.95

HCP17598SET4 Aftermarket Mikuni main jet needle tension spring PLASTIC SEAT WASHER. Set of 4:
$ 18.95




HCP9905 OEM Mikuni main jet needle tension spring METAL SEAT WASHER, fits all XJ700-X, XJ750-X, all XJ900 RK, RL, N, FN, and F models, XJ1100, and all 1980-81 XS1100 models. Use 1 per carb. Each:
$ 3.50



HCP5178 OEM Mikuni main jet needle ring cap C-CLIP, fits original or aftermarket main jet needles used on all XJ550, 1984-85 FJ600, XJ650 Turbo, XJ700-X, XJ750-X, XJ900 RK, RL, N, FN, and F models, XJ1100, and all XS1100 models. Use 1 per carb. Each:
$ 1.95

HCP16314 Aftermarket Mikuni main jet needle ring cap C-CLIP, fits the aftermarket main jet needles HCP15790 and HCP15792 (only these needles) as used on all XJ900 RK, RL, N, FN, and F models, and all XS1100 models. Use 1 per carb. Each:
$ 1.00



HCP9904 OEM Mikuni main jet needle RING CAP, fits all XJ700-X, XJ750-X, XJ900 RK, RL, N, FN, and F models, XJ1100, and 1980-81 XS1100 models. Use 1 per needle. Each:
$ 7.95



mjw1) Aftermarket Mikuni main jet needle TUNING WASHERS, these precision ground 18-8 stainless steel shim washers are used to raise the main jet needle height slightly, in order to allow performance tuning modifications when the stock intake or exhaust system has been modified. Tuning washers fit underneath of the plastic needle cap and move the needle upwards off its vacuum piston seat, thus raising the needle end point within the main jet "emulsion tube". Each washer is .025mm thick, and multiple washers can be used to provide the proper tuning desired. Fits all XJ550, 650 Turbo, XJ700-X, XJ750-X, all XJ900RK, RL, N/FN, and F, XJ1100, and all XS1100 models. NOTE: the outer edge of these washers will need to be trimmed down slightly for use on XJ550 and XJ650 Turbo models.


HCP7142 Aftermarket 18-8 stainless steel TUNING WASHER, each:
$ 1.95

HCP7142SET4 Aftermarket 18-8 stainless steel TUNING WASHERS, set of 4:
$ 6.00

HCP7142SET8 Aftermarket 18-8 stainless steel TUNING WASHERS, set of 8:
$ 10.00

HCP7142SET12 Aftermarket 18-8 stainless steel TUNING WASHERS, set of 12:
$ 12.00




MIKUNI MAIN NEEDLE JET a/k/a EMULSION TUBE:

Called by a variety of names, the main fuel jet tube is technically known as the MAIN NEEDLE JET, although they also go by the name of "power valves", "emulsion tubes", or some choice four-letter words while you are trying to remove them from their bore hole in the carb body! These 2" long brass tubes have a series of very precise, very small holes that actually atomize the fuel from the main fuel jet around the jet needle, and are what provide the final, precise metering of the fuel mixture through the main jet.

Commonly clogged and dirty-filthy beyond belief, they are easy to damage while removing them or during the cleaning process. If the holes are enlarged, if the end of the tube (where the needle enters it) worn or egg-shaped, or if the threads in the jet end damaged, these nozzles should be replaced, or your bike will never run properly.


HCP17586 Aftermarket Mikuni brass MAIN NEEDLE JET or EMULSION TUBE, fits all 1981-83 XJ550 North American and all XJ550 Euro models, each:
$ 22.95

HCP17586SET4 Aftermarket Mikuni brass MAIN NEEDLE JETS or EMULSION TUBES, set of 4:
$ 79.95



HCP22377 OEM Mikuni brass MAIN NEEDLE JET or EMULSION TUBE, fits all 1992-98 XJ600 Seca II models. NOTE: these are the factory upgraded size 34 emulsion tubes (originals were size 32). Each:
$ 26.95

HCP22377SET4 OEM Mikuni brass MAIN NEEDLE JETS or EMULSION TUBES, set of 4:
$ 99.95



HCP5224 OEM Mikuni brass MAIN NEEDLE JET or EMULSION TUBE, fits all XJ650 Turbo models, each:
$ 54.95

HCP5224SET4 OEM Mikuni brass MAIN NEEDLE JETS or EMULSION TUBES, set of 4:
$ 218.95


HCP15598 Aftermarket Mikuni brass MAIN NEEDLE JET or EMULSION TUBE, fits all XJ650 Turbo models, each:
$ 22.95

HCP15598SET4 Aftermarket Mikuni brass MAIN NEEDLE JETS or EMULSION TUBES, set of 4:
$ 79.95



HCP17587 Aftermarket Mikuni brass MAIN NEEDLE JET or EMULSION TUBE, fits all XJ700-X and XJ750-X models, each:
$ 24.95

HCP17587SET4 Aftermarket Mikuni brass MAIN NEEDLE JETS or EMULSION TUBES, set of 4:
$ 84.95




HCP9899 OEM Mikuni brass MAIN NEEDLE JET or EMULSION TUBE, fits all XJ900RK, RL, N/FN, and F models, each:
$ 54.95

HCP9899SET4 OEM Mikuni brass MAIN NEEDLE JETS or EMULSION TUBES, set of 4:
$ 218.95


HCP15789 Aftermarket Mikuni brass MAIN NEEDLE JET or EMULSION TUBE, fits all XJ900RK, RL, N/FN, and F models, each:
$ 24.95

HCP15789SET4 Aftermarket Mikuni brass MAIN NEEDLE JETS or EMULSION TUBES, set of 4:
$ 84.95



HCP23299 Aftermarket Mikuni brass MAIN NEEDLE JET or EMULSION TUBE, fits all 1978-79 XS1100 models, each:
$ 24.95

HCP23299SET4 Aftermarket Mikuni brass MAIN NEEDLE JETS or EMULSION TUBES, set of 4:
$ 84.95


HCP16645 Aftermarket Mikuni brass MAIN NEEDLE JET or EMULSION TUBE, fits all XJ1100 and 1980-81 XS1100 models, each:
$ 24.95

HCP16645SET4 Aftermarket Mikuni brass MAIN NEEDLE JETS or EMULSION TUBES, set of 4:
$ 84.95


MIKUNI FUEL INLET - FLOAT VALVE NEEDLES:

fs4) Aftermarket Mikuni fuel inlet - float valve NEEDLE ONLY...for those who wish to do an extreme-budget rebuild, you can buy the rubber-tipped float valve needle by itself (without its brass seat).

NOTE: on all of the float needles that use a retaining clip, please note that the clip can be installed in two different ways (orientations). User experience indicates that the clip should be positioned so that the "open" area of the clip (that part of the clip that snaps over the ridge on the top of the needle) should be oriented towards the "back" of the carbs; in other words, the open area of the clip should be towards the airbox.

NOTE: on all of the float needles that use a central, spring-loaded "plunger" at the float end, please note that this plunger is designed to act as a "shock absorber" and is not normally depressed in normal operation, and the float heights and fuel levels should not be set with this plunger depressed. Doing so will result in a vastly incorrect fuel level setting and will lead to carb flooding.


For use on all XJ550 models, 1984-85 FJ600, 1992-98 XJ600 Seca II, all XJ700-X and XJ750-X models, all XJ900 N/FN and F models using the clipped-to-the-float style needle, all XJ1100, and all 1980-81 XS1100 models:

HCP1670 Aftermarket Mikuni fuel inlet - float valve rubber-tipped NEEDLE, with retainer clip, each:
$ 8.95

HCP1670SET4 Aftermarket Mikuni fuel inlet - float valve rubber-tipped NEEDLES, set of 4:
$ 32.95



For use on all XJ650 Turbo, and all XJ900RK and RL models using the non-clipped style of needle:

HCP1671 Aftermarket Mikuni fuel inlet - float valve metal-tipped NEEDLE only, each:
$ 6.95

HCP1671SET4 Aftermarket Mikuni fuel inlet - float valve metal-tipped NEEDLES, set of 4:
$ 24.95



For use on all 1978-79 XS1100 models:

HCP20533 Aftermarket Mikuni fuel inlet - float valve metal-tipped NEEDLE, each:
$ 6.95

HCP20533SET4 Aftermarket Mikuni fuel inlet - float valve rubber-tipped NEEDLES, set of 4:
$ 24.95




MIKUNI FUEL INLET - FLOAT VALVE ASSEMBLIES:

kk) OEM and Aftermarket Mikuni FUEL INLET - FLOAT VALVE ASSEMBLY---contains the float needle with retainer clip (if used), float valve brass seat, the seat o-ring, and the seat filter screen.

NOTE: on all of the float needles that use a retaining clip, please note that the clip can be installed in two different ways (orientations). User experience indicates that the clip should be positioned so that the "open" area of the clip (that part of the clip that snaps over the ridge on the top of the needle) should be oriented towards the "back" of the carbs; in other words, the open area of the clip should be towards the airbox.

HELPFUL HINT: in many cases, a float valve brass seat may get small scars, burrs, or other deformities in the area where the rubber needle tip contacts the seat opening, and thus preventing the fuel flow from being completely shut off even when the bowl is full. Such minor flaws can sometimes be polished out with some very fine (600-grit or higher) polishing paper rolled up into a very tight "cigarette" and then moved back-and-forth thru the opening. Likewise, any flaws on the internal bore of the seat......where the needle slides.....can sometimes be polished away. You should inspect the seat and needle very carefully, under good light and with strong magnification, in order to inspect these crucial parts during any rebuild process, or if carb flooding is indicated.


HCP5191 OEM single FUEL INLET - FLOAT VALVE ASSEMBLY, fits all XJ550, 1984-85 FJ600, all 1980-84 XS650, XJ1100, and all 1980-81 XS1100 models carbs. Includes the float valve brass seat, the needle with its retaining clip, and the seat o-ring. The filter screen for the brass seat is included. Each:
$ 59.95

HCP5191SET4 OEM FUEL INLET - FLOAT VALVE ASSEMBLIES, set of 4:
$ 209.95


HCP1672 Aftermarket single FUEL INLET - FLOAT VALVE ASSEMBLY, fits all XJ550, 1984-85 FJ600, all 1980-84 XS650, XJ1100, and all 1980-81 XS1100 models carbs. Includes the float valve brass seat, the needle with its retaining clip, and the seat o-ring, and the filter screen for the brass seat is included. Each:
$ 34.95

HCP1672SET4 Aftermarket FUEL INLET - FLOAT VALVE ASSEMBLIES, set of 4:
$ 137.95


HCP14531 Aftermarket single FUEL INLET - FLOAT VALVE ASSEMBLY, fits all XJ550, 1984-85 FJ600, all 1980-84 XS650, XJ1100, and all 1980-81 XS1100 models carbs. Includes the float valve brass seat, the needle with its retaining clip, and the seat o-ring. The filter screen for the brass seat is not included, but you can use the HCP2735 or HCP5193 filter screens (below) on these valve seats. Each:
$ 29.95

HCP14531SET4 Aftermarket FUEL INLET - FLOAT VALVE ASSEMBLIES, set of 4:
$ 99.95




HCP22384 OEM single FUEL INLET - FLOAT VALVE ASSEMBLY, fits all 1992 XJ600 Seca II model carbs. Includes the float valve brass seat, the needle with its retaining clip, and the seat o-ring. The filter screen for the brass seat is included. Each:
$ 45.95

HCP22384SET4 OEM FUEL INLET - FLOAT VALVE ASSEMBLIES, set of 4:
$ 179.95



HCP22385 OEM single FUEL INLET - FLOAT VALVE ASSEMBLY, fits all 1993-98 XJ600 Seca II model carbs. Includes the float valve brass seat, the needle with its retaining clip, and the seat o-ring. The filter screen for the brass seat is included. Each:
$ 42.95

HCP22385SET4 OEM FUEL INLET - FLOAT VALVE ASSEMBLIES, set of 4:
$ 159.95


HCP22599 Aftermarket single FUEL INLET - FLOAT VALVE ASSEMBLY, fits all 1993-98 XJ600 Seca II model carbs. Includes the float valve brass seat, the needle with its retaining clip, and the seat o-ring. The filter screen for the brass seat is not included, but you can use the HCP2735 or HCP5193 filter screens (below) on these valve seats. Each:
$ 17.95

HCP22599SET4 Aftermarket FUEL INLET - FLOAT VALVE ASSEMBLIES, set of 4:
$ 59.95



HCP5229 OEM single FUEL INLET - FLOAT VALVE ASSEMBLY, for all XJ650 Turbo models. Includes the seat, needle, and seat o-ring. The needle that comes with this kit is metal-tipped and does not accepts (or include) a retaining clip. The filter screen for the brass seat is not included, but you can use the HCP5193 or HCP2735 domed filter screens (below) on these valve seats. Each:
$ 109.95

HCP5229SET4 OEM FUEL INLET - FLOAT VALVE ASSEMBLIES, set of 4:
$ 399.95


HCP15595 Aftermarket single FUEL INLET - FLOAT VALVE ASSEMBLY, for all XJ650 Turbo models. . Includes the seat, needle, and seat o-ring. The needle that comes with this kit is metal-tipped and does notaccept (or include) a retaining clip. The filter screen for the brass seat is included. NOTE: the fuel passage opening in these aftermarket valves is approximately 50% larger in diameter (1.8mm vs. 1.2mm) than the opening in the original valves and the needle length is slightly shorter than the original needle. Each:
$ 39.95

HCP15595SET4 Aftermarket FUEL INLET - FLOAT VALVE ASSEMBLIES, set of 4:
$ 119.95



HCP8562 OEM single FUEL INLET - FLOAT VALVE ASSEMBLY, for all 1986-88 FZ600, 1986-90 YX600 Radian, XJ700-X, XJ750-X, and all XJ900 N/FN and F models. The needle that comes with this kit is rubber-tipped and accepts (and includes) the retaining clip. The filter screen for the brass seat is not included, but you can use the HCP2735 or HCP5193 filter screens (below) on these valve seats. Each:
$ 84.95

HCP8562SET4 OEM FUEL INLET - FLOAT VALVE ASSEMBLIES, set of 4:
$ 329.95


HCP1673 Aftermarket single FUEL INLET - FLOAT VALVE ASSEMBLY, for all 1986-88 FZ600, 1986-90 YX600 Radian, XJ700-X, XJ750-X, and all XJ900 N/FN and F models. The needle that comes with this kit is rubber-tipped and includes its retaining clip. The filter screen for the brass seat is included. Each:
$ 24.95

HCP1673SET4 Aftermarket FUEL INLET - FLOAT VALVE ASSEMBLIES, set of 4:
$ 89.95




HCP8560 OEM single FUEL INLET - FLOAT VALVE ASSEMBLY, for all XJ900RK and RL models. The needle that comes with this kit is metal-tipped and does not accept (or include) a retaining clip. The filter screen for the brass seat is not included, but you can use the HCP2735 or HCP5193 filter screens (below) on these valve seats. Each:
$ 84.95

HCP8560SET4 OEM FUEL INLET - FLOAT VALVE ASSEMBLIES, set of 4:
$ 329.95


HCP15633 Aftermarket single FUEL INLET - FLOAT VALVE ASSEMBLY, for all XJ900RK and RL models. The needle that comes with this kit is metal-tipped and does not accept (or include) a retaining clip. The filter screen for the brass seat is not included, but you can use the HCP2735 or HCP5193 filter screens (below) on these valve seats. Each:
$ 69.95

HCP15633SET4 Aftermarket FUEL INLET - FLOAT VALVE ASSEMBLIES, set of 4:
$ 259.95



HCP23300 OEM single FUEL INLET - FLOAT VALVE ASSEMBLY, fits all 1978-79 XS1100 models carbs. Includes the float valve brass seat and the metal-tipped needle. Crush washer is not included and should be ordered separate. The filter screen for the brass seat is not included, but you can use the HCP2735 or HCP5193 filter screens (below) on these valve seats. Each:
$ 29.95

HCP23300SET4 OEM FUEL INLET - FLOAT VALVE ASSEMBLIES, set of 4:
$ 114.95


HCP23301 OEM single fuel inlet valve brass seat CRUSH WASHER, for use with the HCP23300 fuel valve above. Each:
$ 14.95

HCP23301SET4 OEM single fuel inlet valve brass seat CRUSH WASHER, set of 4:
$ 57.95


HCP20534 Aftermarket single FUEL INLET - FLOAT VALVE ASSEMBLY, fits all 1978-79 XS1100 models carbs. Includes the float valve brass seat, the seat gasket, and the metal-tipped needle. The filter screen for the brass seat is not included, but you can use the HCP2735 or HCP5193 filter screens (below) on these valve seats. Each:
$ 29.95

HCP20534SET4 Aftermarket FUEL INLET - FLOAT VALVE ASSEMBLIES, set of 4:
$ 109.95



fnv1) OEM and aftermarket Mikuni fuel inlet - float needle valve SEAT O-RING. These o-rings are included in all of the float needle valve assemblies listed above; but, if you want to re-use your original valve seats, we highly recommend the replacement of the seat-to-carb body o-rings, as a leaky o-ring will cause carb flooding!

HCP5192 OEM Mikuni fuel inlet - float needle valve SEAT O-RING, tough and durable buna-N material. Fits all XJ550, 1984-85 FJ600, 1986-88 FZ600, 1986-90 YX600 Radian, 1992-98 XJ600 Seca II, all 1980-84 XS650, XJ650 Turbo, XJ700-X, XJ750-X, all XJ900RK, RL, N/FN, and F models, XJ1100, and all 1980-81 XS1100 models. Each:
$ 6.95

HCP5192SET4 OEM Mikuni fuel inlet - float needle valve SEAT O-RINGS, tough and durable buna-N material, set of 4:
$ 26.95


HCP7406 Aftermarket Mikuni fuel inlet - float needle valve SEAT O-RING, tough and durable buna-N material. Fits all XJ550, 1984-85 FJ600, 1986-88 FZ600, 1986-90 YX600 Radian, 1992-98 XJ600 Seca II, all 1980-84 XS650, XJ650 Turbo, XJ700-X, XJ750-X, all XJ900RK, RL, N/FN, and F models, XJ1100, and all 1980-81 XS1100 models. Each:
$ 4.95

HCP7406SET4 Aftermarket Mikuni fuel inlet - float needle valve SEAT O-RINGS, tough and durable buna-N material, set of 4:
$ 16.95



fnv2) OEM and aftermarket Mikuni fuel inlet - float needle valve SEAT FILTER SCREEN. These small domed mesh screen filters snap onto the top of the float needle valve seat and help to keep crud, junk, and other kinds of cosmic debris out of the carbs. These filter screens are included in the replacement float needle valve assemblies and lower end rebuild kits listed above; but, if you want to re-use your original valve seats, we still recommend the replacement of these screens. NOTE: the HCP5193 or HCP2735 domed filter screens fits all of the following float valve seats that we offer: HCP1672, HCP1673, HCP5191, HCP5229, HCP8560, HCP8562, HCP14531, HCP15633, HCP20534, HCP22384, HCP22385, HCP22599, HCP26635, and HCP26637. The HCP2644 flat filter screen only fits the HCP15595 aftermarket valve seats (XJ650 Turbo).


HCP5193 OEM Mikuni fuel inlet - float needle valve domed SEAT FILTER SCREEN, use one per carb, each:
$ 16.95

HCP5193SET4 OEM Mikuni fuel inlet - float needle valve domed SEAT FILTER SCREENS, use one per carb, set of 4:
$ 64.95


HCP2735 Aftermarket Mikuni fuel inlet - float needle valve domed SEAT FILTER SCREEN, use one per carb, each:
$ 13.95

HCP2735SET4 Aftermarket Mikuni fuel inlet - float needle valve domed SEAT FILTER SCREENS, use one per carb, set of 4:
$ 49.95



HCP2644 Aftermarket Mikuni fuel inlet - float valve needle flat SEAT FILTER SCREEN, use one per carb, for use with float valve seats that have a 4.53mm screen boss (used on the HCP15595 aftermarket seat assemblies for XJ650 Turbo models). This style screen pushes straight onto the brass seat screen boss. Each:
$ 7.95

HCP2644SET4 Aftermarket Mikuni fuel inlet - float valve needle seat flat SEAT FILTER SCREENS, use one per carb, set of 4:
$ 27.95




fh44) OEM Mikuni fuel inlet - float needle valve seat MOUNTING BRACKET. Fits all XJ550, 1984-85 FJ600, XJ650 Turbo, XJ700-X and XJ750-X models, all XJ900RK, RL, N/FN, and F models, and XJ1100 models. Use 1 per carb.

HCP5189 OEM Mikuni fuel inlet - float needle valve seat MOUNTING BRACKET. Fits all XJ550, 1984-85 FJ600, 1986-88 FZ600, 1986-90 YX600 Radian, all 1980-84 XS650, XJ650 Turbo, XJ700-X and XJ750-X models, all XJ900RK, RL, N/FN, and F models, XJ1100, and all 1980-81 XS1100 models. Use 1 per carb. Each:
$ 5.95



fh4) OEM and Aftermarket Mikuni fuel inlet - float needle valve seat mounting bracket RETAINING SCREW. Original screws are panhead, phillips drive alloy steel and strip out easily. Our original and aftermarket replacement screws prevent future problems....it's a good idea to replace these whenever you remove your float needle valve seats. Use 1 per carb.

fits all XJ550, 1984-85 FJ600, 1986-88 FZ600, 1986-90 YX600 Radian, all 1980-84 XS650, XJ650 Turbo, XJ700-X, XJ750-X, all XJ900RK, RL, N/FN, and F models, XJ1100, and all 1980-81 XS1100 models:

HCP5187 OEM Mikuni fuel inlet - float needle valve seat mounting bracket RETAINING SCREW, panhead phillips-drive alloy steel, each:
$ 1.95

HCP5187SET4 OEM Mikuni fuel inlet - float needle valve seat mounting bracket RETAINING SCREWS, set of 4:
$ 6.95




HCP6708 Aftermarket Mikuni fuel inlet - float needle valve seat mounting bracket RETAINING SCREW, panhead phillips-drive zinc-plated alloy steel, each:
$ 0.95

HCP6708SET4 Aftermarket Mikuni fuel inlet - float needle valve seat mounting bracket RETAINING SCREWS, set of 4:
$ 3.75



HCP6709 Aftermarket Mikuni fuel inlet - float needle valve seat mounting bracket RETAINING SCREW, panhead phillips-drive 18-8 stainless steel, bright finish, each:
$ 1.00

HCP6709SET4 Aftermarket Mikuni fuel inlet - float needle valve seat mounting bracket RETAINING SCREWS, set of 4:
$ 3.00



HCP6710 Aftermarket Mikuni fuel inlet - float needle valve seat mounting bracket RETAINING SCREW, panhead phillips-drive 18-8 stainless steel, black-oxide coated finish, each:
$ 1.25

HCP6710SET4 Aftermarket Mikuni fuel inlet - float needle valve seat mounting bracket RETAINING SCREWS, set of 4:
$ 3.50



HCP6712 Aftermarket Mikuni fuel inlet - float needle valve seat mounting bracket RETAINING SCREW, socket head cap screw, hex-drive, 18-8 stainless steel, bright finish, each:
$ 1.00

HCP6712SET4 Aftermarket Mikuni fuel inlet - float needle valve seat mounting bracket RETAINING SCREWS, set of 4:
$ 2.50



HCP6711 Aftermarket Mikuni fuel inlet - float needle valve seat mounting bracket RETAINING SCREW, socket head cap screw, hex-drive, black-oxide coated finish, each:
$ 1.00

HCP6711SET4 Aftermarket Mikuni fuel inlet - float needle valve seat mounting bracket RETAINING SCREWS, set of 4:
$ 2.50



fits all 1992-98 XJ600 Seca II models:

HCP22386 OEM Mikuni fuel inlet - float needle valve seat RETAINING SCREW, panhead phillips-drive alloy steel, each:
$ 5.95

HCP22386SET4 OEM Mikuni fuel inlet - float needle valve seat RETAINING SCREWS, set of 4:
$ 22.95




MIKUNI CARBS LOWER END REBUILD KITS:

oo) Aftermarket Mikuni carb LOWER END REBUILD KIT---contains the fuel inlet - float valve needle with retainer clip (on models using them), the brass valve seat with the filter screen, the seat o-ring, and a reproduction bowl gasket (or bowl o-ring on XJ650 Turbo and XJ600 Seca II models). Just the basic parts you'll need if doing a quick carb re-fresh or fighting leaking fuel inlet ("float") valves.

For complete carb rebuild kits, see further below for our partial or complete carb rebuild kits.

XJ550 models:

Each kit contains:
1 - HCP1672 float valve seat, seat o-ring, needle, and seat filter screen
1 - HCP863 bowl gasket
1 - HCP18664 bowl drain screw o-ring
1 - HCP6709 float valve retaining bracket screw

HCP1669 Aftermarket Mikuni carb LOWER END REBUILD KIT, each:
$ 39.95

HCP1669SET4 Aftermarket Mikuni carb LOWER END REBUILD KITS, set of 4:
$ 144.95



1984-85 FJ600 and 1984-91 XJ600 models:

Each kit contains:
1 - HCP1672 float valve seat, seat o-ring, needle, and seat filter screen
1 - HCP1674 bowl gasket
1 - HCP6709 float valve retaining bracket screw

HCP19806 Aftermarket Mikuni carb LOWER END REBUILD KIT, each:
$ 39.95

HCP19806SET4 Aftermarket Mikuni carb LOWER END REBUILD KITS, set of 4:
$ 144.95



1986-88 FZ600 and 1986-90 YX600 Radian models:

Each kit contains:
1 - HCP1673 float valve seat, seat o-ring, needle, and seat filter screen
1 - HCP863 bowl gasket
1 - HCP6709 float valve retaining bracket screw

HCP24224 Aftermarket Mikuni carb LOWER END REBUILD KIT, each:
$ 29.95

HCP24224SET4 Aftermarket Mikuni carb LOWER END REBUILD KITS, set of 4:
$ 114.95



1992 XJ600 Seca II models:

Each kit contains:
1 - HCP22384 float valve seat, seat o-ring, needle, and seat filter screen
1 - HCP19793 float bowl o-ring
1 - HCP22380 main jet holder flat ring
1 - HCP22381 main jet holder crush washer
1 - HCP22386 float valve retaining screw

HCP22601 Aftermarket Mikuni carb LOWER END REBUILD KIT, each:
$ 68.95

HCP22601SET4 Aftermarket Mikuni carb LOWER END REBUILD KITS, set of 4:
$ 259.95



1993-98 XJ600 Seca II models:

Each kit contains:
1 - HCP22599 float valve seat, seat o-ring, and needle
1 - HCP2735 filter screen
1 - HCP19793 float bowl o-ring
1 - HCP22380 main jet holder flat ring
1 - HCP22381 main jet holder crush washer
1 - HCP22386 float valve retaining screw

HCP22606 Aftermarket Mikuni carb LOWER END REBUILD KIT, each:
$ 49.95

HCP22606SET4 Aftermarket Mikuni carb LOWER END REBUILD KITS, set of 4:
$ 189.95



XJ650 Turbo models:

Each kit contains:
1 - HCP15595 float valve seat, seat o-ring, needle, and seat filter screen
1 - HCP15594 float bowl o-ring
1 - HCP18664 bowl drain screw o-ring
1 - HCP6709 float valve retaining bracket screw

HCP18890 Aftermarket Mikuni carb LOWER END REBUILD KIT, each:
$ 39.95

HCP18890SET4 Aftermarket Mikuni carb LOWER END REBUILD KITS, set of 4:
$ 154.95



XJ700-X and XJ750-X models:

Each kit contains:
1 - HCP1673 float valve seat, seat o-ring, needle, and seat filter screen
1 - HCP1674 bowl gasket
1 - HCP6709 float valve retaining bracket screw

HCP18891 Aftermarket Mikuni carb LOWER END REBUILD KIT, each:
$ 27.95

HCP18891SET4 Aftermarket Mikuni carb LOWER END REBUILD KITS, set of 4:
$ 107.95



XJ900RK and RL models:

Each kit contains:
1 - HCP15633 float valve seat, seat o-ring, and needle
1 - HCP2735 float seat screen
1 - HCP1674 bowl gasket
1 - HCP18664 bowl drain screw o-ring
1 - HCP6709 float valve retaining bracket screw

HCP18893 Aftermarket Mikuni carb LOWER END REBUILD KIT, each:
$ 79.95

HCP18893SET4 Aftermarket Mikuni carb LOWER END REBUILD KITS, set of 4:
$ 299.95



XJ900N, FN, and F models:

Each kit contains:
1 - HCP1673 float valve seat, seat o-ring, needle, and seat filter screen
1 - HCP1674 bowl gaskets
1 - HCP18664 bowl drain screw o-ring
1 - HCP6709 float valve retaining bracket screw

HCP18894 Aftermarket Mikuni carb LOWER END REBUILD KIT, each:
$ 28.95

HCP18894SET4 Aftermarket Mikuni carb LOWER END REBUILD KITS, set of 4:
$ 114.95



1978-79 XS1100 all models:

Each kit contains:
1 - HCP20534 float valve seat, seat gasket, and metal-tipped needle
1 - HCP2735 valve seat filter screen
1 - HCP20535 bowl gasket
1 - HCP10028 bowl drain screw gasket

HCP21750 Aftermarket Mikuni carb LOWER END REBUILD KIT, each:
$ 39.95

HCP21750SET4 Aftermarket Mikuni carb LOWER END REBUILD KITS, set of 4:
$ 149.95



1980-84 XS650 all models, all XJ1100, and all 1980-81 XS1100 models :

Each kit contains:
1 - HCP1672 float valve seat, seat o-ring, needle, and seat filter screen
1 - HCP1675 bowl gasket
1 - HCP10028 bowl drain screw gasket
1 - HCP18664 bowl drain screw o-ring
1 - HCP6709 float valve retaining bracket screw

NOTE: all 1980 XS650 and 1980 XS1100 models carbs use only a bottom drain screw gasket and do not use a side bowl drain screw o-ring. 1981 XS1100 Standard models use both: a bottom bowl drain screw gasket and a side bowl drain screw o-ring. All 1981-up XS650, all XJ1100, and 1981 XS1100 Special and Midnight Special models use only the side bowl drain screw o-ring.

HCP18895 Aftermarket Mikuni carb LOWER END REBUILD KIT, each:
$ 59.95

HCP18895SET4 Aftermarket Mikuni carb LOWER END REBUILD KITS, set of 4:
$ 179.95




MIKUNI CARBS COMPLETE REBUILD KITS:

Aftermarket Mikuni BS-xx series carb REBUILD KITS---available in two versions, our partial rebuild kits contains the basic parts you'll need to do a carb re-fresh when you are not breaking the individual carbs off the rack, while the complete rebuild kits have all of the additional parts when doing a full rack teardown. Note that both style kits contain only the typical "wear items" (gaskets, rubber parts, etc.) and do not include any of the various "hard parts" that you may also discover you'll need (jets, emulsion tubes, needles, choke plungers, etc.) once you dig into your specific set of carbs.

The standard kits contain a die-cut paper bowl gasket and a brass straight-blade bowl drain screw, while the deluxe kits have the upgraded hi-performance bowl gaskets and allen-drive bowl drain screws.

NOTE: the float valve needle that comes with these sets are approximately the same height as a factory Yamaha needle, and it may not be necessary to re-adjust the float level height after installation, but for safety and performance reasons you should always check the fuel level after any carb work or parts replacement!


Although not included with any of our kits, we recommend that you order the removable, replaceable HCP7376 or HCP14730 pilot mixture screw rubber caps:

HCP7376 Aftermarket Mikuni idle mixture screw bore hole RUBBER PLUG, tapered design with mushroom head allows repeated removal and re-use. NOTE: may be a slightly loose fit on some models; if so, use a small amount of gasket or rubber adhesive to secure firmly in place (just a thin smear will do). Waterproof and dustproof design keeps the screw away from dirt and moisture, while also allowing for easy removal for tuning purposes. Each:
$ 4.50

HCP7376SET4 Aftermarket Mikuni idle mixture screw bore hole RUBBER PLUGS, set of 4:
$ 17.95



HCP14730 Aftermarket Mikuni idle mixture screw bore hole VINYL PLUG, pliable black caps allows repeated removal and re-use. NOTE: may be a slightly loose fit on some models; if so, use a small amount of gasket or rubber adhesive to secure firmly in place (just a thin smear will do). Waterproof and dustproof design keeps the screw away from dirt and moisture, while also allowing for easy removal for tuning purposes. Each:
$ 1.50

HCP14730SET4 Aftermarket Mikuni idle mixture screw bore hole VINYL PLUGS, set of 4:
$ 5.95


XJ550 models:

Each of our HCP18722 standard partial rebuild kits listed below for XJ550 models include:

- HCP1669 lower end kits with the HCP863 standard bowl gasket (4)
- HCP895 mix screw o-rings (4)
- HCP896 mix screw washers (4)
- HCP6574 mix screw springs (4)
- HCP12013 choke plunger valve rubber dust caps (4)
- HCP14530 fuel bowl brass straight-slot drain screw with o-ring (4)
- HCP6709 float valve retaining bracket screws (4)

HCP18722 Aftermarket Mikuni BS28-series carb STANDARD PARTIAL REBUILD KITS, for use on all XJ550 models. Contains enough parts needed to do an entire rack of carbs:
$ 199.95


Each of our HCP18864 deluxe partial rebuild kits listed below for XJ550 models include:

- all of the items in the HCP18722 standard partial rebuild kits but with the following upgraded parts:
* the HCP14530 brass bowl drain screws are replaced with the HCP8879 allen-drive bowl drain screws.
* the HCP863 standard bowl gaskets are replaced with the HCP18412 hi-performance bowl gaskets

HCP18864 Aftermarket Mikuni BS28-series carb DELUXE PARTIAL REBUILD KITS, for use on all XJ550 models. Contains enough parts needed to do an entire rack of carbs:
$ 209.95




Each of our HCP18723 standard complete rebuild kits listed below for XJ550 models include:

- HCP1669 lower end kits with the HCP863 standard bowl gasket (4)
- HCP895 mix screw o-rings (4)
- HCP896 mix screw washers (4)
- HCP6574 mix screw springs (4)
- HCP12013 choke plunger valve rubber dust caps (4)
- HCP14530 fuel bowl brass straight-slot drain screws with their o-ring (4)
- HCP6709 float valve retaining bracket screws (4)
- HCP38B throttle shaft seals (8)
- HCP39C throttle shaft shim washers (4)
- HCP7120 throttle shaft butterfly valve screws (8)
- HCP905 throttle shaft e-clips (2)
- HCP6880 fuel tube o-rings (8)

HCP18723 Aftermarket Mikuni BS28-series carb STANDARD COMPLETE REBUILD KITS, for use on all XJ550 models. Contains all the parts needed to do an entire rack of carbs:
$ 269.95



Each of our HCP18865 deluxe complete rebuild kits listed below for XJ550 models include:

- all of the items in the HCP18723 standard complete rebuild kits but with the following upgraded parts:
* the HCP14530 brass bowl drain screws are replaced with the HCP8879 allen-drive bowl drain screws.
* the HCP863 standard bowl gaskets are replaced with the HCP18412 hi-performance bowl gaskets

HCP18865 Aftermarket Mikuni BS28-series carb DELUXE COMPLETE REBUILD KITS, for use on all XJ550 models. Contains all the parts needed to do an entire rack of carbs:
$ 279.95



1984-85 FJ600 and 1984-91 XJ600 models:

Each of our HCP21514 standard partial rebuild kits listed below for 1984-85 FJ600 and 1984-91 XJ600 models include:

- HCP1672 float valve seat, seat o-ring, needle, and seat filter screen (4)
- HCP1674 float bowl standard grade gaskets (4)
- HCP895 mix screw o-rings (4)
- HCP896 mix screw washers (4)
- HCP8544 mix screw springs (4)
- HCP12013 choke plunger valve rubber dust caps (4)
- HCP16326 fuel bowl brass straight-slot drain screw (4)
- HCP6709 float valve retaining bracket screws (4)

HCP21514 Aftermarket Mikuni BS32-series carb STANDARD PARTIAL REBUILD KITS, fits all 1984-85 FJ600 and 1984-91 XJ600 models. Contains enough parts needed to do an entire rack of carbs:
$ 199.95


Each of our HCP21515 deluxe partial rebuild kits listed below for 1984-85 FJ600 and 1984-91 XJ600 models include:

- all of the items in the HCP21514 standard partial rebuild kits but with the following upgraded parts:
* the HCP16326 brass bowl drain screws are replaced with the HCP8879 allen-drive bowl drain screws.
* the HCP1674 standard bowl gaskets are replaced with the HCP18413 hi-performance bowl gaskets

HCP21515 Aftermarket Mikuni BS32-series carb DELUXE PARTIAL REBUILD KITS, fits all 1984-85 FJ600 and 1984-91 XJ600 models. Contains enough parts needed to do an entire rack of carbs:
$ 209.95




Each of our HCP21516 standard complete rebuild kits listed below for 1984-85 FJ600 and 1984-91 XJ600 models include:

- HCP1672 float valve seat, seat o-ring, needle, and seat filter screen (4)
- HCP1674 standard bowl gasket (4)
- HCP895 mix screw o-rings (4)
- HCP896 mix screw washers (4)
- HCP8544 mix screw springs (4)
- HCP12013 choke plunger valve rubber dust caps (4)
- HCP16326 fuel bowl brass straight-slot drain screw (4)
- HCP6709 float valve retaining bracket screws (4)
- HCP38B throttle shaft seals (8)
- HCP39C throttle shaft shim washers (4)
- HCP7120 throttle shaft butterfly valve screws (8)
- HCP905 throttle shaft e-clips (2)
- HCP6880 fuel tube o-rings (12)

HCP21516 Aftermarket Mikuni BS32-series carb STANDARD COMPLETE REBUILD KITS, for use on all 1984-85 FJ600 and 1984-91 XJ600 models. Contains all the parts needed to do an entire rack of carbs:
$ 239.95


Each of our HCP21517 deluxe partial rebuild kits listed below for 1984-85 FJ600 and 1984-91 XJ600 models include:

- all of the items in the HCP21516 standard complete rebuild kits but with the following upgraded parts:
* the HCP16326 brass bowl drain screws are replaced with the HCP8879 allen-drive bowl drain screws.
* the HCP1674 standard bowl gaskets are replaced with the HCP18413 hi-performance bowl gaskets

HCP21517 Aftermarket Mikuni BS32-series carb DELUXE COMPLETE REBUILD KITS, for use on all 1984-85 FJ600 and 1984-91 XJ600 models. Contains all the parts needed to do an entire rack of carbs:
$ 249.95



1986-88 FZ600 and 1986-90 YX600 Radian models:

Each of our HCP24225 standard partial rebuild kits listed below for 1986-88 FZ600 and 1986-90 YX600 Radian models include:

- HCP24224 lower end kits with the HCP863 standard bowl gasket (4)
- HCP895 mix screw o-rings (4)
- HCP896 mix screw washers (4)
- HCP6574 mix screw springs (4)
- HCP16326 fuel bowl brass straight-slot drain screw (4)
- HCP12013 choke plunger dust caps (4)

HCP24225 Aftermarket Mikuni carb STANDARD COMPLETE REBUILD KITS, for use on all 1986-88 FZ600 and 1986-90 YX600 Radian models. Contains all the parts needed to do an entire rack of carbs:
$ 189.95



Each of our HCP24226 deluxe partial rebuild kits listed below for 1986-88 FZ600 and 1986-90 YX600 Radian models include:

- all of the items in the HCP24225 standard partial rebuild kits but with the following upgraded parts:
* the HCP863 standard bowl gaskets are replaced with the HCP18412 hi-performance bowl gaskets
* the HCP16326 brass bowl drain screws are replaced with the HCP8879 allen-drive bowl drain screws.

HCP24226 Aftermarket Mikuni carb DELUXE PARTIAL REBUILD KITS, fits all 1986-88 FZ600 and 1986-90 YX600 Radian models. Contains enough parts needed to do an entire rack of carbs:
$ 199.95



Each of our HCP24227 standard complete rebuild kits listed below for 1986-88 FZ600 and 1986-90 YX600 Radian models include:

- HCP24225 standard partial rebuild kits
- HCP38B throttle shaft seals (8)
- HCP39C throttle shaft shim washers (4)
- HCP7120 throttle shaft butterfly valve screws (8)
- HCP905 throttle shaft e-clips (2)
- HCP6880 fuel tube o-rings (8)

HCP24227 Aftermarket Mikuni carb STANDARD COMPLETE REBUILD KITS, fits all 1986-88 FZ600 and 1986-90 YX600 Radian (USA) models. Contains all the parts needed to do an entire rack of carbs:
$ 269.95



Each of our HCP24228 deluxe complete rebuild kits listed below for 1986-88 FZ600 and 1986-90 YX600 Radian models include:

- all of the items in the HCP23366 standard complete rebuild kits but with the following upgraded parts:
* the HCP863 standard bowl gaskets are replaced with the HCP18412 hi-performance bowl gaskets
* the HCP16326 brass bowl drain screws are replaced with the HCP8879 allen-drive bowl drain screws.

HCP24228 Aftermarket Mikuni carb DELUXE COMPLETE REBUILD KITS, fits all 1986-88 FZ600 and 1986-90 YX600 Radian models. Contains all the parts needed to do an entire rack of carbs:
$ 277.95



1992 XJ600 Seca II (USA models only) models:

Each of our HCP23364 standard partial rebuild kits listed below for 1992 XJ600 Seca II models include:

- HCP22601 lower end kits (4)
- HCP895 mix screw o-rings (4)
- HCP896 mix screw washers (4)
- HCP6574 mix screw springs (4)
- HCP16326 fuel bowl brass straight-slot drain screw (4)
- HCP12013 choke plunger dust caps (4)

HCP23364 Aftermarket Mikuni BDS26-series carb STANDARD PARTIAL REBUILD KITS, fits all 1992 XJ600 Seca II (USA) models. Contains enough parts needed to do an entire rack of carbs:
$ 309.95


Each of our HCP23365 deluxe partial rebuild kits listed below for 1992 XJ600 Seca II models include:

- all of the items in the HCP23364 standard partial rebuild kits but with the following upgraded parts:
* the HCP16326 brass bowl drain screws are replaced with the HCP8879 allen-drive bowl drain screws.

HCP23365 Aftermarket Mikuni BDS26-series carb DELUXE PARTIAL REBUILD KITS, fits all 1992 XJ600 Seca II (USA) models. Contains enough parts needed to do an entire rack of carbs:
$ 314.95



Each of our HCP23366 standard complete rebuild kits listed below for 1992 XJ600 Seca II models include:

- HCP22601 lower end kits (4)
- HCP895 mix screw o-rings (4)
- HCP896 mix screw washers (4)
- HCP6574 mix screw springs (4)
- HCP16326 fuel bowl brass straight-slot drain screw (4)
- HCP12013 choke plunger dust caps (4)
- HCP38B throttle shaft seals (8)
- HCP39C throttle shaft shim washers (4)
- HCP7120 throttle shaft butterfly valve screws (8)
- HCP905 throttle shaft e-clips (2)
- HCP22388 fuel inlet t-fitting and fuel supply tube rubber sleeve seals (6)

HCP23366 Aftermarket Mikuni BDS26-series carb STANDARD COMPLETE REBUILD KITS, fits all 1992 XJ600 Seca II (USA) models. Contains all the parts needed to do an entire rack of carbs:
$ 439.95



Each of our HCP23367 deluxe complete rebuild kits listed below for 1992 XJ600 Seca II models include:

- all of the items in the HCP23366 standard complete rebuild kits but with the following upgraded parts:
* the HCP16326 brass bowl drain screws are replaced with the HCP8879 allen-drive bowl drain screws.

HCP23367 Aftermarket Mikuni BDS26-series carb DELUXE COMPLETE REBUILD KITS, fits all 1992 XJ600 Seca II (USA) models. Contains all the parts needed to do an entire rack of carbs:
$ 444.95



1993-98 XJ600 Seca II (USA models only) models:

Each of our HCP23368 standard partial rebuild kits listed below for 1993-98 XJ600 Seca II models include:

- HCP22606 lower end kits (4)
- HCP895 mix screw o-rings (4)
- HCP896 mix screw washers (4)
- HCP6574 mix screw springs (4)
- HCP16326 fuel bowl brass straight-slot drain screw (4)
- HCP12013 choke plunger dust caps (4)

HCP23368 Aftermarket Mikuni BDS26-series carb STANDARD PARTIAL REBUILD KITS, fits all 1993-982 XJ600 Seca II (USA) models. Contains enough parts needed to do an entire rack of carbs:
$ 259.95



Each of our HCP23369 deluxe partial rebuild kits listed below for 1993-98 XJ600 Seca II models include:

- all of the items in the HCP23368 standard partial rebuild kits but with the following upgraded parts:
* the HCP16326 brass bowl drain screws are replaced with the HCP8879 allen-drive bowl drain screws.

HCP23369 Aftermarket Mikuni BDS26-series carb DELUXE PARTIAL REBUILD KITS, fits all 1993-98 XJ600 Seca II (USA) models. Contains enough parts needed to do an entire rack of carbs:
$ 269.95



Each of our HCP23370 standard complete rebuild kits listed below for 1993-98 XJ600 Seca II models include:

- HCP22606 lower end kits (4)
- HCP895 mix screw o-rings (4)
- HCP896 mix screw washers (4)
- HCP6574 mix screw springs (4)
- HCP16326 fuel bowl brass straight-slot drain screw (4)
- HCP12013 choke plunger dust caps (4)
- HCP38B throttle shaft seals (8)
- HCP39C throttle shaft shim washers (4)
- HCP7120 throttle shaft butterfly valve screws (8)
- HCP905 throttle shaft e-clips (2)
- HCP22388 fuel inlet t-fitting and fuel supply tube rubber sleeve seals (6)

HCP23370 Aftermarket Mikuni BDS26-series carb STANDARD COMPLETE REBUILD KITS, fits all 1993-982 XJ600 Seca II (USA) models. Contains all the parts needed to do an entire rack of carbs:
$ 379.95



Each of our HCP23371 deluxe complete rebuild kits listed below for 1993-98 XJ600 Seca II models include:

- all of the items in the HCP23370 standard complete rebuild kits but with the following upgraded parts:
* the HCP16326 brass bowl drain screws are replaced with the HCP8879 allen-drive bowl drain screws.

HCP23371 Aftermarket Mikuni BDS26-series carb DELUXE COMPLETE REBUILD KITS, fits all 1993-982 XJ600 Seca II (USA) models. Contains all the parts needed to do an entire rack of carbs:
$ 384.95



XJ650 Turbo models:

Each of our HCP18867 standard partial rebuild kits listed below for XJ650 Turbo models include:

- HCP15595 float valve seat, seat o-ring, needle, and seat filter screen (4)
- HCP895 mix screw o-rings (4)
- HCP896 mix screw washers (4)
- HCP8544 mix screw springs (4)
- HCP9846 starter plunger seat o-rings (4)
- HCP12013 choke plunger valve rubber dust caps (4)
- HCP15594 float bowl o-rings (4)
- HCP14530 fuel bowl brass straight-slot drain screws with their o-ring (4)
- HCP6709 float valve retaining bracket screws (4)

HCP18867 Aftermarket Mikuni BS30-series carb STANDARD PARTIAL REBUILD KITS, fits all XJ650 Turbo models. Contains enough parts needed to do an entire rack of carbs:
$ 249.95



Each of our HCP18868 standard complete rebuild kits listed below for XJ650 Turbo models include:

- HCP15595 float valve seat, seat o-ring, needle, and seat filter screen (4)
- HCP895 mix screw o-rings (4)
- HCP896 mix screw washers (4)
- HCP8544 mix screw springs (4)
- HCP9846 starter plunger seat o-rings (4)
- HCP12013 choke plunger valve rubber dust caps (4)
- HCP15594 float bowl o-rings (4)
- HCP14530 fuel bowl brass straight-slot drain screws with their o-ring (4)
- HCP6709 float valve retaining bracket screws (4)
- HCP38B throttle shaft seals (8)
- HCP39C throttle shaft shim washers (4)
- HCP7120 throttle shaft butterfly valve screws (8)
- HCP905 throttle shaft e-clips (2)
- HCP6880 fuel tube o-rings (20)

HCP18868 Aftermarket Mikuni BS30-series carb STANDARD COMPLETE REBUILD KITS, fits all XJ650 Turbo models. Contains all the parts needed to do an entire rack of carbs:
$ 329.95


NOTE: there are no "deluxe" rebuild kits available for the XJ650 Turbo models.



XJ700-X and XJ750-X models:

Each of our HCP18724 standard partial rebuild kits listed below for XJ700-X or XJ750-X models include:

- HCP1673 float valve seat, seat o-ring, needle, and seat filter screen (4)
- HCP895 mix screw o-rings (4)
- HCP896 mix screw washers (4)
- HCP6574 mix screw springs (4)
- HCP12013 choke plunger valve rubber dust caps (4)
- HCP1674 float bowl standard grade gaskets (4)
- HCP16326 fuel bowl brass straight-slot drain screw (4)
- HCP6709 float valve retaining bracket screws (4)

HCP18724 Aftermarket Mikuni BS33-series carb STANDARD PARTIAL REBUILD KITS, fits all XJ700-X and XJ750-X models. Contains enough parts needed to do an entire rack of carbs:
$ 179.95



Each of our HCP18869 deluxe partial rebuild kits listed below for XJ700-X or XJ750-X models include:

- all of the items in the HCP18724 standard partial rebuild kits but with the following upgraded parts:
* the HCP16326 brass bowl drain screws are replaced with the HCP8879 allen-drive bowl drain screws.
* the HCP1674 standard bowl gaskets are replaced with the HCP18413 hi-performance bowl gaskets

HCP18869 Aftermarket Mikuni BS33-series carb DELUXE PARTIAL REBUILD KITS, fits all XJ700-X and XJ750-X models. Contains enough parts needed to do an entire rack of carbs:
$ 189.95



Each of our HCP18725 standard complete rebuild kits listed below for XJ700-X or XJ750-X models include:

- HCP1673 float valve seat, seat o-ring, needle, and seat filter screen (4)
- HCP895 mix screw o-rings (4)
- HCP896 mix screw washers (4)
- HCP6574 mix screw springs (4)
- HCP12013 choke plunger valve rubber dust caps (4)
- HCP1674 float bowl standard grade gaskets (4)
- HCP16326 fuel bowl brass straight-slot drain screw (4)
- HCP6709 float valve retaining bracket screws (4)
- HCP38B throttle shaft seals (8)
- HCP39C throttle shaft shim washers (4)
- HCP7120 throttle shaft butterfly valve screws (8)
- HCP905 throttle shaft e-clips (2)
- HCP6880 fuel tube o-rings (12)

HCP18725 Aftermarket Mikuni BS33-series carb STANDARD COMPLETE REBUILD KITS, fits all XJ700-X and XJ750-X models. Contains all the parts needed to do an entire rack of carbs:
$ 249.95



Each of our HCP18870 deluxe complete rebuild kits listed below for XJ700-X or XJ750-X models include:

- all of the items in the HCP18725 standard complete rebuild kits but with the following upgraded parts:
* the HCP16326 brass bowl drain screws are replaced with the HCP8879 allen-drive bowl drain screws.
* the HCP1674 standard bowl gaskets are replaced with the HCP18413 hi-performance bowl gaskets

HCP18870 Aftermarket Mikuni BS33-series carb DELUXE COMPLETE REBUILD KITS, fits all XJ700-X and XJ750-X models. Contains all the parts needed to do an entire rack of carbs:
$ 257.95



XJ900RK and RL models (BS35-series carbs):

Each of our HCP18726 standard partial rebuild kits listed below for XJ900RK or RL models include:

- HCP15633 float valve seat, seat o-ring, and needle (4)
- HCP2735 float valve seat filter screens (4)
- HCP895 mix screw o-rings (4)
- HCP896 mix screw washers (4)
- HCP8544 mix screw springs (4)
- HCP10520 or HCP12014 choke plunger valve rubber dust caps (4)
- HCP1674 float bowl standard grade gaskets (4)
- HCP14530 fuel bowl brass straight-slot drain screws with their o-ring (4)
- HCP6709 float valve retaining bracket screws (4)

HCP18726 Aftermarket Mikuni BS35-series carb STANDARD PARTIAL REBUILD KITS, fits all 1983-84 XJ900RK and RL models. Contains enough parts needed to do an entire rack of carbs:
$ 369.95


Each of our HCP18871 deluxe partial rebuild kits listed below for XJ900RK or RL models include:

- all of the items in the HCP18726 standard partial rebuild kits but with the following upgraded parts:
* the HCP14530 brass bowl drain screws are replaced with the HCP8879 allen-drive bowl drain screws.
* the HCP1674 standard bowl gaskets are replaced with the HCP18413 hi-performance bowl gaskets

HCP18871 Aftermarket Mikuni BS35-series carb DELUXE PARTIAL REBUILD KITS, fits all 1983-84 XJ900RK and RL models. Contains enough parts needed to do an entire rack of carbs:
$ 384.95



Each of our HCP18727 standard complete rebuild kits listed below for XJ900RK or RL models include:

- HCP15633 float valve seat, seat o-ring, and needle (4)
- HCP2735 float valve seat filter screens (4)
- HCP895 mix screw o-rings (4)
- HCP896 mix screw washers (4)
- HCP8544 mix screw springs (4)
- HCP10520 or HCP12014 choke plunger valve rubber dust caps (4)
- HCP1674 float bowl standard grade gaskets (4)
- HCP14530 fuel bowl brass straight-slot drain screws with their o-ring (4)
- HCP6709 float valve retaining bracket screws (4)
- HCP38B throttle shaft seals (8)
- HCP39C throttle shaft shim washers (4)
- HCP7120 throttle shaft butterfly valve screws (8)
- HCP905 throttle shaft e-clips (2)
- HCP6880 fuel tube o-rings (12)

HCP18727 Aftermarket Mikuni BS35-series carb STANDARD COMPLETE REBUILD KITS, fits all 1983-84 XJ900RK and RL models. Contains all the parts needed to do an entire rack of carbs:
$ 429.95



Each of our HCP18872 deluxe complete rebuild kits listed below for XJ900RK or RL models include:

- all of the items in the HCP18727 standard complete rebuild kits but with the following upgraded parts:
* the HCP14530 brass bowl drain screws are replaced with the HCP8879 allen-drive bowl drain screws.
* the HCP1674 standard bowl gaskets are replaced with the HCP18413 hi-performance bowl gaskets

HCP18872 Aftermarket Mikuni BS35-series carb DELUXE COMPLETE REBUILD KITS, fits all 1983-84 XJ900RK and RL models. Contains all the parts needed to do an entire rack of carbs:
$ 439.95



XJ900N, FN, F models (BS36-series carbs):

Each of our HCP18728 standard partial rebuild kits listed below for XJ900N, FN, and F models include:

- HCP1673 float valve seat, seat o-ring, needle, and seat filter screen (4)
- HCP895 mix screw o-rings (4)
- HCP896 mix screw washers (4)
- HCP8544 mix screw springs (4)
- HCP10520 or HCP12014 choke plunger valve rubber dust caps (4)
- HCP1674 float bowl standard grade gaskets (4)
- HCP14530 fuel bowl brass straight-slot drain screws with their o-ring (4)
- HCP6709 float valve retaining bracket screws (4)

HCP18728 Aftermarket Mikuni BS36-series carb STANDARD PARTIAL REBUILD KITS, fits all 1985-90 XJ900N, FN, and F models. Contains enough parts needed to do an entire rack of carbs:
$ 199.95



Each of our HCP18873 deluxe partial rebuild kits listed below for XJ900N, FN, and F models include:

- all of the items in the HCP18728 standard partial rebuild kits but with the following upgraded parts:
* the HCP14530 brass bowl drain screws are replaced with the HCP8879 allen-drive bowl drain screws.
* the HCP1674 standard bowl gaskets are replaced with the HCP18413 hi-performance bowl gaskets

HCP18873 Aftermarket Mikuni BS36-series carb DELUXE PARTIAL REBUILD KITS, fits all 1985-90 XJ900N, FN, and F models. Contains enough parts needed to do an entire rack of carbs:
$ 209.95



Each of our HCP18729 standard complete rebuild kits listed below for XJ900N, FN, and F models include:

- HCP1673 float valve seat, seat o-ring, needle, and seat filter screen (4)
- HCP895 mix screw o-rings (4)
- HCP896 mix screw washers (4)
- HCP8544 mix screw springs (4)
- HCP10520 or HCP12014 choke plunger valve rubber dust caps (4)
- HCP1674 float bowl standard grade gaskets (4)
- HCP14530 fuel bowl brass straight-slot drain screws with their o-ring (4)
- HCP6709 float valve retaining bracket screws (4)
- HCP38B8 throttle shaft seals (8)
- HCP39C throttle shaft shim washers (4)
- HCP7120 throttle shaft butterfly valve screws (8)
- HCP905 throttle shaft e-clips (2)
- HCP6880 fuel tube o-rings (12)

HCP18729 Aftermarket Mikuni BS36-series carb STANDARD COMPLETE REBUILD KITS, fits all 1985-90 XJ900N, FN, and F models. Contains all the parts needed to do an entire rack of carbs:
$ 274.95



Each of our HCP18874 deluxe complete rebuild kits listed below for XJ900N, FN, and F models include:

- all of the items in the HCP18729 standard complete rebuild kits but with the following upgraded parts:
* the HCP14530 brass bowl drain screws are replaced with the HCP8879 allen-drive bowl drain screws.
* the HCP1674 standard bowl gaskets are replaced with the HCP18413 hi-performance bowl gaskets

HCP18874 Aftermarket Mikuni BS36-series carb DELUXE COMPLETE REBUILD KITS, fits all 1985-90 XJ900N, FN, and F models. Contains all the parts needed to do an entire rack of carbs:
$ 284.95



XJ1100 and all 1980-81 XS1100 models:

Each of our HCP18730 standard partial rebuild kits listed below for XJ1100 and 1980-81 XS1100 models include:

- HCP1672 float valve seat, seat o-ring, needle, and seat filter screen (4)
- HCP895 mix screw o-rings (4)
- HCP896 mix screw washers (4)
- HCP8544 mix screw springs (4)
- HCP10520 or HCP12014 choke plunger valve rubber dust caps (4)
- HCP1675 float bowl standard grade gaskets (4)
- HCP14530 fuel bowl brass straight-slot drain screws with their o-ring (4)
- HCP10028 bowl drain screw gasket (4)
- HCP6709 float valve retaining bracket screw (4)

HCP18730 Aftermarket Mikuni BS34-series carb STANDARD PARTIAL REBUILD KITS, fits all 1982-84 XJ1100 and 1980-81 XS1100 models. NOTE: the HCP10028 drain screw gasket is only used on 1980 XS1100 (all models) and on 1981 XS1100 Standard models. Contains enough parts needed to do an entire rack of carbs:
$ 242.95



Each of our HCP18875 deluxe partial rebuild kits listed below for XJ1100 and 1980-81 XS1100 models include:

- all of the items in the HCP18730 standard partial rebuild kits but with the following upgraded parts:
* the HCP14530 brass bowl drain screws are replaced with the HCP8879 allen-drive bowl drain screws.
* the HCP1675 standard bowl gaskets are replaced with the HCP18414 hi-performance bowl gaskets

HCP18875 Aftermarket Mikuni BS34-series carb DELUXE PARTIAL REBUILD KITS, fits all 1982-84 XJ1100 and 1980-81 XS1100 models. Contains enough parts needed to do an entire rack of carbs:
$ 254.95




Each of our HCP18731 standard complete rebuild kits listed below for XJ1100 and 1980-81 XS1100 models include:

- HCP1672 float valve seat, seat o-ring, needle, and seat filter screen (4)
- HCP895 mix screw o-rings (4)
- HCP896 mix screw washers (4)
- HCP8544 mix screw springs (4)
- HCP10520 or HCP12014 choke plunger valve rubber dust caps (4)
- HCP1675 float bowl standard grade gaskets (4)
- HCP14530 fuel bowl brass straight-slot drain screws with their o-ring (4)
- HCP10028 bowl drain screw gaskets (4)
- HCP6709 float valve retaining bracket screws (4)
- HCP38B throttle shaft seals (8)
- HCP39C throttle shaft shim washers (4)
- HCP7120 throttle shaft butterfly valve screws (8)
- HCP905 throttle shaft e-clips (2)

HCP18731 Aftermarket Mikuni BS34-series carb STANDARD COMPLETE REBUILD KITS, fits all 1982-84 XJ1100 and 1980-81 XS1100 models. . NOTE: the HCP10028 drain screw gasket is only used on 1980 XS1100 (all models) and on 1981 XS1100 Standard models. Contains enough parts needed to do an entire rack of carbs:
$ 299.95



Each of our HCP18876 deluxe complete rebuild kits listed below for XJ1100 and 1980-81 XS1100 models include:

- all of the items in the HCP18731 standard complete rebuild kits but with the following upgraded parts:
* the HCP14530 brass bowl drain screws are replaced with the HCP8879 allen-drive bowl drain screws.
* the HCP1675 standard bowl gaskets are replaced with the HCP18414 hi-performance bowl gaskets

HCP18876 Aftermarket Mikuni BS34-series carb DELUXE COMPLETE REBUILD KITS, fits all 1982-84 XJ1100 and 1980-81 XS1100 models. Contains all the parts needed to do an entire rack of carbs:
$ 309.95



NOTE: good used condition carb bodies, float bowls, and other carb rack components are sometimes available, please inquire.


MIKUNI FUEL BOWL FLOATS:

fs8) OEM and aftermarket Mikuni carb fuel bowl FLOATS, FLOAT PINS, AND SHIMS, brand new replacement units.

NOTE: the float pin on Mikuni carbs is held to the float posts in the carb body via a friction fit on one end of the pin, and it is not uncommon for these pins to become seized in the posts.........however, one end of the pin is not (from the factory) "mushroomed"................if yours are, it's probably because someone was pounding at it with a punch trying to get it loose, and weren't able to. Any amount of "swollen" or mushrooming of the end of the pin should be gently removed with a file or similar tool, before pin extraction is attempted.

But even in the best of cases, because of the "friction-fit" design of these pins, removing them can be a tricky process. We then recommend you try this trick:

and use a proper sized center-punch (like our HCP17638) to gently punch out the pin. Some good info and images can be found here:

http://xjbikes.com/forums/index.php?threads/17628

and

http://xjbikes.com/forums/index.php?threads/19168


But whatever you do, don't try to "force" it out, or it might end up like this:

http://xjbikes.com/forums/index.php?threads/17843



HCP17638 Aftermarket miniature hand-held CENTER PUNCH, proper sized thin point tip is the perfect size for driving out the float pins on Mikuni carbs. Adjustable punch force control and a knurled, sure-grip handle makes this a "must-have" tool when working on your carbs.
$ 18.95

HCP17689 Aftermarket replacement PUNCH TIP for the HCP17638 center punch above.
$ 4.95



HCP5188 OEM Mikuni FLOAT, float only (pin is not included and must be ordered separate), fits all XJ550, 1986-88 FZ600, 1986-1990 YX600 Radian, and XJ650 Turbo models. NOTE: the float pin tube on this float bracket is bushed as original. Each:
$ 42.95

HCP5188SET4 OEM Mikuni FLOATS, set of 4:
$ 164.95


HCP9940 Aftermarket Mikuni FLOAT and FLOAT PIN SET, fits all XJ550, 1986-88 FZ600, 1986-1990 YX600 Radian, and XJ650 Turbo models. NOTE: the float pin tube on this float bracket is not bushed as are the originals. Each:
$ 29.95

HCP9940SET4 Aftermarket Mikuni FLOAT and FLOAT PIN SETS, set of 4:
$ 109.95



HCP9944 OEM Mikuni FLOAT, fits all 1984-85 FJ600, XJ700-X, XJ750-X, all XJ900RK, RL, N/FN, and F models, XJ1100, and all 1980-81 XS1100 models. Float pin is not included. NOTE: the float pin tube on this float bracket is bronze-bushed as original. Also fits the following models: 1980-82 SR250, 1982-83 XS400 Maxim and Seca, XS650 G/H/SH/SJ/SK, 1984-85 FJ1100, 1987 FJ1200 and 1989-93 FJ1200 carbs. Each:
$ 59.95

HCP9944SET4 OEM Mikuni FLOATS, set of 4:
$ 229.95


HCP1668 Aftermarket Mikuni FLOAT and PIN SET, fits all 1984-85 FJ600, XJ700-X, XJ750-X, all XJ900RK, RL, N/FN, and F models, XJ1100, and all 1980-811 XS1100 models. Float pin is included. NOTE: the float pin tube on this float bracket is bronze-bushed as original. Also fits the following models: 1980-82 SR250, 1982-83 XS400 Maxim and Seca, XS650 G/H/SH/SJ/SK, 1984-85 FJ1100, 1987 FJ1200 and 1989-93 FJ1200 carbs. Each:
$ 29.95

HCP1668SET4 Aftermarket Mikuni FLOAT and PIN SETS, set of 4:
$ 114.95



HCP23266 OEM Mikuni brass FLOAT, fits all 1978-79 XS1100 models. Float pin is not included. NOTE: the 1980-81 style plastic floats can be used in place of these original brass “barrel” floats. Each:
$ 54.95

HCP23266SET4 OEM Mikuni brass FLOATS, set of 4:
$ 209.95



HCP23267 Aftermarket Mikuni brass FLOAT, fits all 1978-79 XS1100 models. Float pin is not included. NOTE: the 1980-81 style plastic floats can be used in place of these original brass “barrel” floats. Each:
$ 19.95

HCP23267SET4 Aftermarket Mikuni brass FLOATS, set of 4:
$ 69.95



HCP22367 OEM Mikuni FLOAT, fits all 1992-98 XJ600 Seca II models. Float pin is not included. Each:
$ 62.95

HCP22367SET4 OEM Mikuni FLOATS, set of 4:
$ 239.95




HCP5190 OEM Mikuni FLOAT PIN, fits all XJ550, 1984-85 FJ600, 1986-88 FZ600, 1986-90 YX600 Radian, XJ650 Turbo, XJ700-X, XJ750-X, all XJ900RK, RL. N/FN, and F models, XJ1100, and all XS1100 models, each:
$ 4.95

HCP5190SET4 OEM Mikuni FLOAT PINS, set of 4:
$ 17.95


HCP14532 Aftermarket Mikuni FLOAT PIN, fits all XJ550, 1984-85 FJ600, 1986-88 FZ600, 1986-90 YX600 Radian, XJ650 Turbo, XJ700-X, XJ750-X, all XJ900RK, RL. N/FN, and F models, XJ1100, and all XS1100 models, each:
$ 3.95

HCP14532SET4 Aftermarket Mikuni FLOAT PINS, set of 4:
$ 13.95



HCP22366 Aftermarket Mikuni FLOAT PIN, fits all 1992-98 XJ600 Seca II models, each:
$ 5.95

HCP22366SET4 Aftermarket Mikuni FLOAT PINS, set of 4:
$ 23.50



Unlike the Hitachi carbs, Mikuni carb floats used a precise-fitting hinge pin to secure the float to the formed "tube" that the float pin slides thru on the float bracket arm. This design feature results in a float that typically has very little side-to-side "slop" in its motion and movement. Any slop that does exist can, however, allow a bit of erratic movement in the float on the pin, and can contribute to difficulties with getting the fuel level set properly and consistently on these carbs

We offer some very precise SHIMMING WASHERS that allow you to take up this slack. Unfortunately, due to variations in the machining of the float post inside distance on various car bodies, there is no "one-size-fits-all" solution that we can offer as to what thickness shims are going to be correct to use. The best guidance that we can offer is that you want to eliminate equal amounts of slop on both sides of the float pin tube, while still allowing for enough clearance on both sides to eliminate any chance of the float binding on the pin.

Our research shows that a typical carb body on the BS28 series carbs (XJ550 models) will have float posts that have approximately an 18.20mm inside-to-inside distance, at the level where the pin goes thru the float posts. The pin tube on the float, however, is only about 17.60 - 17.80mm wide.......giving a total amount of "slop of 0.60mm between the pin tube and the float posts......note that this 0.50mm of slop is equally divided on both ends of the float pin tube, resulting in a clearance of approximately 0.25mm on each side of the pin tube.

The BS30 series carbs (used on XJ650 Turbo models) will have float posts that have approximately an 18.10mm inside-to-inside distance, at the level where the pin goes thru the float posts. The pin tube on the float, however, is only about 17.60 - 17.80mm wide.......giving a total amount of "slop of 0.50mm between the pin tube and the float posts......note that this 0.50mm of slop is equally divided on both ends of the float pin tube, resulting in a clearance of approximately 0.25mm on each side of the pin tube.

The BS33 series carbs (used on XJ700-X and XJ750-X models) will have float posts that have approximately an 18.20mm inside-to-inside distance, at the level where the pin goes thru the float posts. The pin tube on the float, however, is only about 17.80mm wide.......giving a total amount of "slop of 0.40mm between the pin tube and the float posts......note that this 0.40mm of slop is equally divided on both ends of the float pin tube, resulting in a clearance of approximately 0.20mm on each side of the pin tube.

The BS34/35/36 series carbs (used on XJ900 and XJ1100 models) have very precise and minimal clearances between the float posts and the float pin tube on the float, and thus never require additional shimming.

Our thoughts and experience shows that you can safely reduce this clearance to 0.20mm per side.


HCP18328 Aftermarket float pin tube SHIMMING WASHER, for use with all Hitachi original floats. Each stainless steel shim measures 0.0254mm thickness. Use as required or in conjunction with other size shimming washers to take up the proper amount of slop. Each:
$ 1.50

HCP18328SET8 Aftermarket float pin tube SHIMMING WASHER, set of 8:
$ 7.95


HCP18329 Aftermarket float pin tube SHIMMING WASHER, for use with all Hitachi original floats. Each stainless steel shim measures 0.0508mm thickness. Use as required or in conjunction with other size shimming washers to take up the proper amount of slop. Each:
$ 1.50

HCP18329SET8 Aftermarket float pin tube SHIMMING WASHER, set of 8:
$ 7.95


HCP18330 Aftermarket float pin tube SHIMMING WASHER, for use with all Hitachi original floats. Each stainless steel shim measures 0.0762mm thickness. Use as required or in conjunction with other size shimming washers to take up the proper amount of slop. Each:
$ 1.50

HCP18330SET8 Aftermarket float pin tube SHIMMING WASHER, set of 8:
$ 7.95


HCP18331 Aftermarket float pin tube SHIMMING WASHER, for use with all Hitachi original floats. Each stainless steel shim measures 0.1016mm thickness. Use as required or in conjunction with other size shimming washers to take up the proper amount of slop. Each:
$ 1.50

HCP18331SET8 Aftermarket float pin tube SHIMMING WASHER, set of 8:
$ 7.95


HCP18332 Aftermarket float pin tube SHIMMING WASHER, for use with all Hitachi original floats. Each stainless steel shim measures 0.1270mm thickness. Use as required or in conjunction with other size shimming washers to take up the proper amount of slop. Each:
$ 1.50

HCP18332SET8 Aftermarket float pin tube SHIMMING WASHER, set of 8:
$ 7.95


HCP18333 Aftermarket float pin tube SHIMMING WASHER, for use with all Hitachi original floats. Each stainless steel shim measures 0.1524mm thickness. Use as required or in conjunction with other size shimming washers to take up the proper amount of slop. Each:
$ 1.50

HCP18333SET8 Aftermarket float pin tube SHIMMING WASHER, set of 8:
$ 7.95



HCP18334 Aftermarket float pin tube SHIMMING WASHER, for use with all Hitachi original floats. Each stainless steel shim measures 0.1778mm thickness. Use as required or in conjunction with other size shimming washers to take up the proper amount of slop. Each:
$ 1.50

HCP18334SET8 Aftermarket float pin tube SHIMMING WASHER, set of 8:
$ 7.95



HCP18335 Aftermarket float pin tube SHIMMING WASHER, for use with all Hitachi original floats. Each stainless steel shim measures 0.2032mm thickness. Use as required or in conjunction with other size shimming washers to take up the proper amount of slop. Each:
$ 1.50

HCP18335SET8 Aftermarket float pin tube SHIMMING WASHER, set of 8:
$ 7.95



HCP18336 Aftermarket float pin tube SHIMMING WASHER, for use with all Hitachi original floats. Each stainless steel shim measures 0.2540mm thickness. Use as required or in conjunction with other size shimming washers to take up the proper amount of slop. Each:
$ 1.50

HCP18336SET8 Aftermarket float pin tube SHIMMING WASHER, set of 8:
$ 7.95




FLOAT BOWL GASKETS & O-RINGS:

OEM bowl gaskets are made from a graphite impregnated board material, while the standard-duty aftermarket gaskets are made from a treated fiber (cardboard) type material. We recommend the use of the aftermarket hi-performance gaskets which are designed to slightly swell in the presence of petroleum products (fuel or oil), thus creating a super-tight, leak-proof flange seal. These die-cut replacement carb bowl-to-carb body gaskets correctly replace your torn or leaking originals. NOTE: float bowl gaskets are already included in all of our lower end and complete carb rebuild kits listed above.

Note that the XJ650 Turbo body used a shape-molded o-ring in place of a standard style gasket.


For all XJ550, 1986-88 FZ600, and 1986-1990 YX600 Radian models:

HCP5182 OEM Mikuni carb standard duty FLOAT BOWL GASKET, each:
$ 7.95

HCP5182SET4 OEM Mikuni carb standard duty FLOAT BOWL GASKETS, set of 4:
$ 29.95


HCP863 Aftermarket Mikuni carb standard duty FLOAT BOWL GASKET, each:
$ 6.95

HCP863SET4 Aftermarket Mikuni carb standard duty FLOAT BOWL GASKETS, set of 4:
$ 23.95


HCP18412 Aftermarket Mikuni carb hi-performance FLOAT BOWL GASKET, each:
$ 8.95

HCP18412SET4 Aftermarket Mikuni carb performance FLOAT BOWL GASKETS, set of 4:
$ 32.95



For 1992-98 XJ600 Seca II and 1992-2002 XJ600 Euro models:

HCP26565 OEM carb bowl-to-body rubber FLOAT BOWL O-RING, for all 1992-98 XJ600 Seca II and 1996-2002 XJ600 Euro models, each:
$ 21.95

HCP26565SET4 OEM carb bowl-to-body rubber FLOAT BOWL O-RINGS, set of 4:
$ 82.95


HCP19793 Aftermarket carb bowl-to-body rubber FLOAT BOWL O-RING, for all 1992-98 XJ600 Seca II and 1996-2002 XJ600 Euro models, each:
$ 14.95

HCP19793SET4 Aftermarket carb bowl-to-body rubber FLOAT BOWL O-RINGS, set of 4:
$ 49.95



HCP26566 OEM carb bowl-to-body rubber FLOAT BOWL O-RING, for all 1992-1995 XJ600 Euro models. Also fits: 1989 FZR600, 1990-99 FZR600R, 1989 FZR1000 (California only). 1990-95 FZR1000, 1994 and 1996 and 1998 YZF750R, 1997 YZF750, and 1992-93 TDM850 models. Each:
$ 11.95

HCP26566SET4 OEM carb bowl-to-body rubber FLOAT BOWL O-RINGS, set of 4:
$ 42.95



For XJ650 Turbo models:

HCP5222 OEM carb bowl-to-body rubber FLOAT BOWL O-RING, for all XJ650 Turbo models, each:
$ 29.95

HCP5222SET4 OEM carb FLOAT BOWL O-RINGS, set of 4:
$ 99.95


HCP15594 Aftermarket carb bowl-to-body rubber FLOAT BOWL O-RING, for all XJ650 Turbo models, each:
$ 14.95

HCP15594SET4 Aftermarket carb FLOAT BOWL O-RINGS, set of 4:
$ 54.95



For all FJ600, XJ700-X, XJ750-X, and all XJ900RK, RL, N/FN, and F models:

NOTE: all of the following oem and aftermarket float bowl gaskets have a slightly elongated cut-out for the choke tube slot area (compared to the original gaskets); this feature does not present any mounting or sealing issues.

HCP8563 OEM Mikuni carb standard duty FLOAT BOWL GASKET, each:
$ 12.95

HCP8563SET4 OEM Mikuni carb standard duty FLOAT BOWL GASKETS, set of 4:
$ 47.95


HCP1674 Aftermarket Mikuni carb standard duty FLOAT BOWL GASKET, standard grade, un-treated gasket material, each:
$ 4.95

HCP1674SET4 Aftermarket Mikuni carb standard duty FLOAT BOWL GASKETS, set of 4:
$ 18.95


HCP15791 Aftermarket Mikuni carb standard duty FLOAT BOWL GASKET, premium grade, treated with a non-stick coating like the originals, each:
$ 6.95

HCP15791SET4 Aftermarket Mikuni carb standard duty FLOAT BOWL GASKETS, set of 4:
$ 24.95


HCP18413 Aftermarket Mikuni carb hi-performance FLOAT BOWL GASKET, each:
$ 8.95

HCP18413SET4 Aftermarket Mikuni carb hi-performance FLOAT BOWL GASKETS, set of 4:
$ 32.95



For all 1980-84 XS650, all XJ1100, and 1980-81 XS1100 models:

HCP6575 OEM Mikuni carb standard duty FLOAT BOWL GASKET, each:
$ 18.95

HCP6575SET4 OEM Mikuni carb standard duty FLOAT BOWL GASKETS, set of 4:
$ 72.95


HCP1675 Aftermarket Mikuni carb standard duty FLOAT BOWL GASKET, standard grade, un-treated gasket material, each:
$ 8.50

HCP1675SET4 Aftermarket Mikuni carb standard duty FLOAT BOWL GASKETS, set of 4:
$ 29.95


HCP16644 Aftermarket Mikuni carb standard duty BOWL GASKET, premium grade, treated with a non-stick coating like the originals, each:
$ 9.95

HCP16644SET4 Aftermarket Mikuni carb standard duty BOWL GASKETS, set of 4:
$ 34.95


HCP18414 Aftermarket Mikuni carb hi-performance FLOAT BOWL GASKET, each:
$ 8.95

HCP18414SET4 Aftermarket Mikuni carb hi-performance FLOAT BOWL GASKETS, set of 4:
$ 32.95



For all 1978-79 XS1100 models:

HCP23532 OEM Mikuni carb standard duty FLOAT BOWL GASKET, standard grade, un-treated gasket material, each:
$ 24.95

HCP23532SET4 OEM Mikuni carb standard duty FLOAT BOWL GASKETS, set of 4:
$ 89.95


HCP20535 Aftermarket Mikuni carb standard duty FLOAT BOWL GASKET, standard grade, un-treated gasket material, each:
$ 8.95

HCP20535SET4 Aftermarket Mikuni carb standard duty FLOAT BOWL GASKETS, set of 4:
$ 29.95


HCP23531 Aftermarket Mikuni carb hi-performance FLOAT BOWL GASKET, each:
$ 9.95

HCP23531SET4 Aftermarket Mikuni carb standard duty FLOAT BOWL GASKETS, set of 4:
$ 34.95


NOTE: if you use any type of sealant on these gaskets, use it on the BOWL side of the gasket (something like Permatex Copper Spray-A-Gasket is a fine choice). On the carb body side of the gasket, use a light oil....like Marvel Mystery Oil or the like....and barely moisten the gasket surface. This will allow the new gasket to soften slightly and allows the gasket to form itself to the raised mounting ridge that is cast onto the carb body mating flange.....and also allows for an easy, no-stick removal of the float bowl in the future!




HCP26218 Aftermarket float bowl FUEL LEVEL TUBE ADAPTER TOOL, for use on almost all Mikuni carb bowls which do not have a tube nipple cast into the bowl drain output port (note that XJ600 Seca II, XJ1100, and XS1100 models do have a cast-in bowl drain nipple, and thus cannot use (nor need) this product). Unlike Hitachi carbs, Mikuni float bowls do not have a permanent float bowl drain outlet port fitting which the clear tube fuel level gauge can be attached onto; nope, there's just an empty hole there. Yamaha supplied dealership service departments with a special o-ringed brass adapter fitting that pops into this hole, and which could be used during fuel-level checks….moving this (non-permanent) adapter from bowl-to-bowl as the fuel-level checking process proceeded. This reproduction o-ringed aluminum adapter properly duplicates the function of the original (note: for a permanent adapter solution, you can use the HCP8494 bowl drain nipples below).
$ 11.95


HCP8494 Aftermarket float bowl DRAIN NIPPLE, for all Mikuni carb bowls on XJ550, XJ650 Turbo, XJ700-X, XJ750-X, XJ900 models (note that XJ600 Seca II, XJ1100, and XS1100 models do have a cast-in bowl drain nipple, and thus cannot use (nor need) this product). Unlike Hitachi carbs, Mikuni float bowls do not have a permanent float bowl drain outlet port fitting which the clear tube fuel level gauge can be attached to; no, there's just an empty hole there. The factory had a special o-ringed brass adapter fitting that fit into this hole that would be used during fuel-level checks, but very few people have that adapter and even it is somewhat cumbersome to use. These precisely machined nipples are designed for permanent installation into the Mikuni float bowls----just tap them in place, they are a friction-fit----and them you can slip the fuel-level gauge tube directly onto the protruding end of the fitting. Simple 20-second installation: clean the inside of the drain port in the bowl, use a bit of silicone lube on the adapter, place proper end in drain port, and gently tap in place with a hammer. Once installed, it's leak-free but can still be removed (not easily, but it can!), in case your preferences ever change in the future. Protrudes approximately 1/8" from the drain port, enough to install the clear tube gauge but not enough to interfere with other carb functions. Looks original once installed. Fits Mikuni carbs used on all XJ550 models, XJ650 Turbo, XJ700-X, XJ750-X, and XJ900 models. Use 1 per float bowl. Each:
$ 10.95

HCP8494SET4 Aftermarket float bowl DRAIN NIPPLES, for Mikuni carbs, set of 4:
$ 34.95




HCP1408SS Aftermarket STAINLESS STEEL WIRE-BRISTLE CLEANING BRUSH, 8.0mm diameter, great for the throttle shaft bore and the emulsion tube bore within the carb body on all Hitachi and Mikuni carbs, and is also the correct size for the float bowl fuel outlet port on Mikuni carbs bowls (except XJ600 Seca II, XJ1100, or XS1100 model bowls). Highly recommended to be used to clean and scour the drain port hole before using either of the above Mikuni bowl adapter fitting or drain nipples.
$ 5.95




MIKUNI CARB FLOAT BOWL HARDWARE:

bds2) OEM and aftermarket Mikuni carb bowl-to-body MOUNTING SCREW, available in a variety of styles, materials, and finishes. All Mikuni model carbs originally used an alloy steel, panhead, phillips-drive, with a zinc-plated finish, and used an integral lockwasher (except for the 1992-98 XJ600 Seca II models, which used lockwashers only on the screws that secured the idle speed support bracket to the bowls at its 3 mounting positions; all of the other bowl screws did not use lockwashers).

Current OEM and most of the aftermarket screws do not have the integral lockwasher, and a separate lockwasher must be ordered from the selection listed further below for those models that require them.

Here are some quick guides that shows the different head and drive styles:



https://www.boltdepot.com/fastener-information/Printable-Tools/Type-Chart.pdf

http://www.oocities.org/dtmcbride/home_garden/fasteners.html


For XJ550 models:

HCP3696 OEM Mikuni carb bowl-to-body MOUNTING SCREW, zinc-plated alloy-steel, panhead, phillips-drive. Use 4 per bowl, each:
$ 2.50

HCP3696SET4 OEM Mikuni carb bowl-to-body MOUNTING SCREWS, set of 4:
$ 9.50

HCP3696SET16 OEM Mikuni carb bowl-to-body MOUNTING SCREWS, set of 16:
$ 34.00



HCP5482 Aftermarket Mikuni carb bowl-to-body MOUNTING SCREW, zinc-plated alloy-steel, panhead, phillips-drive. Use 4 per bowl, each:
$ 1.00

HCP5482SET4 Aftermarket Mikuni carb bowl-to-body MOUNTING SCREWS, set of 4:
$ 3.50

HCP5482SET16 Aftermarket Mikuni carb bowl-to-body MOUNTING SCREWS, set of 16:
$ 8.95



HCP21356 Aftermarket Mikuni carb bowl-to-body MOUNTING SCREW, 18-8 stainless-steel, panhead, phillips-drive. Use 4 per bowl, each:
$ 1.50

HCP21356SET4 Aftermarket Mikuni carb bowl-to-body MOUNTING SCREWS, set of 4:
$ 4.95

HCP21356SET16 Aftermarket Mikuni carb bowl-to-body MOUNTING SCREWS, set of 16:
$ 12.95



HCP5486 Aftermarket Mikuni carb bowl-to-body MOUNTING SCREW, phillips-drive panhead screw with gold chromate finish. Has an integral lockwasher. Use 4 per bowl, each:
$ 1.95

HCP5486SET4 Aftermarket Mikuni carb bowl-to-body MOUNTING SCREWS, set of 4:
$ 7.50

HCP5486SET16 Aftermarket Mikuni carb bowl-to-body MOUNTING SCREWS, set of 16:
$ 22.95



HCP5485 Aftermarket Mikuni carb bowl-to-body MOUNTING SCREW, 18-8 stainless-steel, polished button head, hex-drive. Use 4 per bowl, each:
$ 1.50

HCP5485SET4 Aftermarket Mikuni carb bowl-to-body MOUNTING SCREWS, set of 4:
$ 4.95

HCP5485SET16 Aftermarket Mikuni carb bowl-to-body MOUNTING SCREWS, set of 16:
$ 10.95



HCP5483 Aftermarket Mikuni carb bowl-to-body MOUNTING SCREW, 18-8 stainless steel, smooth polished socket head, hex-drive. Use 4 per bowl, each:
$ 1.50

HCP5483SET4 Aftermarket Mikuni carb bowl-to-body MOUNTING SCREWS, set of 4:
$ 5.25

HCP5483SET16 Aftermarket Mikuni carb bowl-to-body MOUNTING SCREWS, set of 16:
$ 14.95



HCP5484 Aftermarket Mikuni carb bowl-to-body MOUNTING SCREW, black oxide-coated steel, ribbed socket head, hex-drive. Use 4 per bowl, each:
$ 1.50

HCP5484SET4 Aftermarket Mikuni carb bowl-to-body MOUNTING SCREWS, set of 4:
$ 4.95

HCP5484SET16 Aftermarket Mikuni carb bowl-to-body MOUNTING SCREWS, set of 16:
$ 10.95




For 1992-98 XJ600 Seca II models:

NOTE: these models use short mounting screws, without lockwashers, in all positions except for the three (3) screws that hold the idle speed bracket to the #2 and #3 carb bowls ---- and those 3 long screws do require the use of a lockwasher.

1992-98 models originally used bright (zinc-plated) fasteners, while the 1998 models used black fasteners.


HCP3696 OEM Mikuni carb bowl-to-body short MOUNTING SCREW, zinc-plated alloy-steel, panhead, phillips-drive. Use 4 per bowl, each:
$ 2.50

HCP3696SET4 OEM Mikuni carb bowl-to-body short MOUNTING SCREWS, set of 4:
$ 9.50

HCP3696SET13 OEM Mikuni carb bowl-to-body short MOUNTING SCREWS, set of 13:
$ 27.95



HCP5482 Aftermarket Mikuni carb bowl-to-body short MOUNTING SCREW, zinc-plated alloy-steel, panhead, phillips-drive. Use 4 per bowl, each:
$ 1.00

HCP5482SET4 Aftermarket Mikuni carb bowl-to-body short ]MOUNTING SCREWS, set of 4:
$ 3.50

HCP5482SET13 Aftermarket Mikuni carb bowl-to-body short MOUNTING SCREWS, set of 13:
$ 7.95


HCP6065 Aftermarket Mikuni carb bowl-to-body long MOUNTING SCREW, zinc-plated alloy-steel, panhead, phillips-drive. Lockwashers should be used with these screws and can be ordered separate below. Use 3 per rack, each:
$ 1.50

HCP6065SET3 Aftermarket Mikuni carb bowl-to-body long MOUNTING SCREWS, set of 3:
$ 3.95




HCP21356 Aftermarket Mikuni carb bowl-to-body short MOUNTING SCREW, 18-8 stainless-steel, panhead, phillips-drive. Use 4 per bowl, each:
$ 1.50

HCP21356SET4 Aftermarket Mikuni carb bowl-to-body short MOUNTING SCREWS, set of 4:
$ 4.95

HCP21356SET13 Aftermarket Mikuni carb bowl-to-body short MOUNTING SCREWS, set of 13:
$ 10.95


HCP6067 Aftermarket Mikuni carb bowl-to-body long MOUNTING SCREW, 18-8 stainless-steel, panhead, phillips-drive. Lockwashers should be used with these screws and can be ordered separate below. Use 3 per rack, each:
$ 1.95

HCP6067SET3 Aftermarket Mikuni carb bowl-to-body long MOUNTING SCREWS, set of 3:
$ 5.25




HCP5485 Aftermarket Mikuni carb bowl-to-body short MOUNTING SCREW, 18-8 stainless-steel, polished button head, hex-drive. Use 4 per bowl, each:
$ 1.50

HCP5485SET4 Aftermarket Mikuni carb bowl-to-body short MOUNTING SCREWS, set of 4:
$ 4.95

HCP5485SET13 Aftermarket Mikuni carb bowl-to-body short MOUNTING SCREWS, set of 13:
$ 9.95


HCP22612 Aftermarket Mikuni carb bowl-to-body long MOUNTING SCREW, 18-8 stainless-steel, polished button head, hex-drive. Lockwashers should be used with these screws and can be ordered separate below. Use 3 per rack, each:
$ 1.95

HCP22612SET3 Aftermarket Mikuni carb bowl-to-body long MOUNTING SCREWS, set of 3:
$ 5.25




HCP5483 Aftermarket Mikuni carb bowl-to-body short MOUNTING SCREW, 18-8 stainless steel, smooth polished socket head, hex-drive. Use 4 per bowl, each:
$ 1.50

HCP5483SET4 Aftermarket Mikuni carb bowl-to-body short MOUNTING SCREWS, set of 4:
$ 5.25

HCP5483SET13 Aftermarket Mikuni carb bowl-to-body short MOUNTING SCREWS, set of 13:
$ 12.95


HCP22613 Aftermarket Mikuni carb bowl-to-body long MOUNTING SCREW, 18-8 stainless steel, smooth polished socket head, hex-drive. Lockwashers should be used with these screws and can be ordered separate below. Use 3 per rack, each:
$ 1.95

HCP22613SET3 Aftermarket Mikuni carb bowl-to-body long MOUNTING SCREWS, set of 3:
$ 5.25




HCP5484 Aftermarket Mikuni carb bowl-to-body short MOUNTING SCREW, black oxide-coated steel, ribbed socket head, hex-drive. Use 4 per bowl, each:
$ 1.50

HCP5484SET4 Aftermarket Mikuni carb bowl-to-body short MOUNTING SCREWS, set of 4:
$ 4.95

HCP5484SET13 Aftermarket Mikuni carb bowl-to-body short MOUNTING SCREWS, set of 13:
$ 9.95


HCP22614 Aftermarket Mikuni carb bowl-to-body short MOUNTING SCREW, black oxide-coated alloy steel, ribbed socket head, hex-drive. Lockwashers should be used with these screws and can be ordered separate below. Use 3 per rack, each:
$ 1.75

HCP22614SET3 Aftermarket Mikuni carb bowl-to-body short MOUNTING SCREWS, set of 3:
$ 4.95




For 1984-85 FJ600, XJ650 Turbo, XJ700-X, XJ750-X, all XJ900RK, RL, N/FN, and F models, XJ1100, and all XS1100 models:

HCP2940 OEM Mikuni carb bowl-to-body MOUNTING SCREWS. These panhead, phillips-drive, alloy steel screws have a dark grey plated finish, and are approximately 2mm longer than stock, each. Use 4 per bowl, each:
$ 3.50

HCP2940SET4 OEM Mikuni carb bowl-to-body MOUNTING SCREWS, set of 4:
$ 13.95

HCP2940SET16 OEM Mikuni carb bowl-to-body MOUNTING SCREWS, set of 16:
$ 49.95



HCP2643 Aftermarket Mikuni carb bowl-to-body MOUNTING SCREW, zinc-plated alloy steel, panhead, phillips drive, approximately 2mm longer than stock. Use 4 per bowl, each:
$ 1.75

HCP2643SET4 Aftermarket Mikuni carb bowl-to-body MOUNTING SCREWS, set of 4:
$ 5.50

HCP2643SET16 Aftermarket Mikuni carb bowl-to-body MOUNTING SCREWS, set of 16:
$ 18.95



HCP1358 Aftermarket Mikuni carb bowl-to-body MOUNTING SCREW, with an integral lock washer as original, panhead, phillips drive, gold chromate finish. Use 4 per bowl, each:
$ 1.95

HCP1358SET4 Aftermarket Mikuni carb bowl-to-body MOUNTING SCREWS, with lock washers, set of 4:
$ 6.95

HCP1358SET16 Aftermarket Mikuni carb bowl-to-body MOUNTING SCREWS, with lock washers, set of 16:
$ 19.95



HCP302 Aftermarket Mikuni carb bowl-to-body MOUNTING SCREW, 18-8 stainless steel, panhead, phillips-drive, approximately 2mm longer than stock. Use 4 per bowl, each:
$ 1.50

HCP302SET4 Aftermarket Mikuni carb bowl-to-body MOUNTING SCREWS, set of 4:
$ 4.95

HCP302SET16 Aftermarket Mikuni carb bowl-to-body MOUNTING SCREWS, set of 16:
$ 12.95



HCP303 Aftermarket Mikuni carb bowl-to-body MOUNTING SCREW, 18-8 stainless-steel, polished button head, hex-drive, approximately 2mm longer than stock. Use 4 per bowl, each:
$ 1.95

HCP303SET4 Aftermarket Mikuni carb bowl-to-body MOUNTING SCREWS, set of 4:
$ 5.95

HCP303SET16 Aftermarket Mikuni carb bowl-to-body MOUNTING SCREWS, set of 16:
$ 14.95



HCP56 Aftermarket Mikuni carb bowl-to-body MOUNTING SCREW, 18-8 stainless steel, smooth polished socket head, hex-drive, approximately 2mm longer than stock. Use 4 per bowl, each:
$ 1.95

HCP56SET4 Aftermarket Mikuni carb bowl-to-body MOUNTING SCREWS, set of 4:
$ 4.95

HCP56SET16 Aftermarket Mikuni carb bowl-to-body MOUNTING SCREWS, set of 16:
$ 13.95



HCP58 Aftermarket Mikuni carb bowl-to-body MOUNTING SCREW, black oxide-coated alloy steel, ribbed socket head, hex-drive, approximately 2mm longer than stock. Use 4 per bowl, each:
$ 1.50

HCP58SET4 Aftermarket Mikuni carb bowl-to-body MOUNTING SCREWS, set of 4:
$ 4.95

HCP58SET16 Aftermarket Mikuni carb bowl-to-body MOUNTING SCREWS, set of 16:
$ 9.95




bds3) OEM and aftermarket Mikuni carb bowl-to-body mounting screw LOCK WASHER, available in a variety of styles, materials, and finishes. All Mikuni model carbs (except 1992-98 XJ600 Seca II models) originally used a panhead, phillips-drive bowl mounting screw that had an integral lockwasher. Current OEM and many of the replacement screws do not have the integral lockwasher, and thus a separate lockwasher should be ordered from the selection listed below:


For XJ550 and 1992-98 XJ600 Seca II models:

HCP326 OEM carb bowl mounting screw LOCK WASHER, zinc-plated alloy steel, each:
$ 1.95

HCP326SET4 OEM carb bowl mounting screw LOCK WASHERS, set of 4:
$ 7.50

HCP326SET16 OEM carb bowl mounting screw LOCK WASHERS, set of 16:
$ 14.95



HCP922 Aftermarket carb bowl mounting screw LOCK WASHER, zinc-plated alloy steel, each:
$ 0.95

HCP922SET4 Aftermarket carb bowl mounting screw LOCK WASHERS, set of 4:
$ 3.50

HCP922SET16 Aftermarket carb bowl mounting screw LOCK WASHERS, set of 16:
$ 7.95



HCP336 Aftermarket carb bowl mounting screw LOCK WASHER, 18-8 stainless-steel, each:
$ 0.95

HCP336SET4 Aftermarket carb bowl mounting screw LOCK WASHERS, set of 4:
$ 3.50

HCP336SET16 Aftermarket carb bowl mounting screw LOCK WASHERS, set of 16:
$ 7.95



HCP342 Aftermarket carb bowl mounting screw LOCK WASHER, black oxide-coated alloy steel, each:
$ 0.95

HCP342SET4 Aftermarket carb bowl mounting screw LOCK WASHERS, set of 4:
$ 3.25

HCP342SET16 Aftermarket carb bowl mounting screw LOCK WASHERS, set of 16:
$ 8.95



For XJ650 Turbo, XJ700-X, XJ750-X, all XJ900RK, RL, N/FN, and F models, and XJ1100 models:

HCP55 OEM Mikuni carb bowl-to-body mounting screw LOCK WASHER, zinc-plated alloy steel, each:
$ 1.95

HCP55SET4 OEM Mikuni carb bowl-to-body mounting screw LOCK WASHERS, set of 4:
$ 7.50

HCP55SET16 OEM Mikuni carb bowl-to-body mounting screw LOCK WASHERS, set of 16:
$ 14.95



HCP913 Aftermarket Mikuni carb bowl-to-body mounting screw LOCK WASHER, zinc-plated alloy steel, each:
$ 1.00

HCP913SET4 Aftermarket Mikuni carb bowl-to-body mounting screw LOCK WASHERS, set of 4:
$ 3.75

HCP913SET16 Aftermarket Mikuni carb bowl-to-body mounting screw LOCK WASHERS, set of 16:
$ 5.50



HCP57 Aftermarket Mikuni carb bowl-to-body mounting screw LOCK WASHER, 18-8 stainless steel, each:
$ 1.00

HCP57SET4 Aftermarket Mikuni carb bowl-to-body mounting screw LOCK WASHERS, set of 4:
$ 3.25

HCP57SET16 Aftermarket Mikuni carb bowl-to-body mounting screw LOCK WASHERS, set of 16:
$ 7.95



HCP59 Aftermarket Mikuni carb bowl-to-body mounting screw LOCK WASHER, e black-oxide coated alloy steel, each:
$ 1.00

HCP59SET4 Aftermarket Mikuni carb bowl-to-body mounting screw LOCK WASHERS, set of 4:
$ 2.95

HCP59SET16 Aftermarket Mikuni carb bowl-to-body mounting screw LOCK WASHERS, set of 16:
$ 6.95




MIKUNI CARB BOWL DRAIN SCREWS:

g5m) OEM and aftermarket Mikuni carb BOWL DRAIN SCREW....the ones that are always such a bear to remove. OEM screws are bright-plated alloy steel with a panhead, phillips-drive design, and come in both the version WITH the o-ring under the screw head (all XJ550, XJ650 Turbo, all XJ900RK, RL, N/FN, and F models, and XJ1100 models) and the style WITHOUT the o-ring under the screw head (all XJ700-X and XJ750-X models).

NOTE: If you plan on using the HCP865 or HCP14530 screws WITHOUT any o-rings, we VERY STRONGLY suggest you use the HCP4399 (or HCP16326) drain screws instead, and here's why: for whatever reason that Mikuni/Yamaha decided to use the o-rings on these bowl drain screws, the fact is that in order to make the o-ring land or "groove" (where the o-ring sits), they turned down the shaft of the screw by almost 2mm total, thus turning an M6 sized screw (that's the nominal size of both styles of drain screws) into an M4 sized screw......kind of a "chain only as strong as its weakest link" kinda thing......since the "skinniest" part of the HCP865 (or HCP14530) screw shaft is now just a hair over 4mm diameter, and in effect this is now a M4 (4mm diameter shaft) screw.

Since these screws tend to get stuck in the bowls after a few years of non-use, I believe what Yamaha discovered very quickly was that these o-ringed type screws are an "in reality" size of just M4---and were getting stuck and shearing off right at that "weakest link" portion of the shaft....the o-ring land.....and that is why they did away with the o-ring land on the later model versions of the Mikuni carbs, and started using an unmodified (non o-ringed) version of the same screw, which is a "true" M6 screw.

In fact, the o-ringed and non o-ringed screw are identical, it's just that the non o-ringed style screws are not machined for a ring land.

Aftermarket socket head cap screws are an improved "never-get-stuck-again" version that are made as an 18-8 stainless steel allen head (a/k/a hex-drive socket head cap). This style works much better than the original Yamaha screw; not only is it made of stainless steel, but the larger allen-head design allows for more torque to be applied to the screw, forever ending the stripped/stuck/ruined drain screw problem that has plagued Yamaha owners forever! Note that by their design, the large allen head portion of this drain screw will be located OUTSIDE of the drain screw bore hole in the bowl, and sticks out about 1/4" from the bowl body.


And if the threaded port in the float bowl where the drain screw fits been injured, or if you want to restore the threads to their like-new condition, this thread chaser tap is what you'll need:

HCP6335 Aftermarket THREAD CHASER AND CLEAN-UP TAP, made from a high-speed uncoated steel. For the following holes:
- all Mikuni carb bowl drain screw hole.
$ 12.95

HCP28170 Aftermarket thread tap or EZ-out extractor TAP HANDLE, featuring offset tap handles and fully adjustable head for all m3-m12 size taps and size 0 to ½” extractors. This is the proper way to hold a tap or extractor to insure that the force is directed straight down and doesn’t “wobble” as you are cutting, reaming, or extracting. Much better than using pliers or vise-grips to hold the tool……..
$ 17.95


NOTE: it is recommended that anti-seize compound be used on the screw threads when fitting screws back into the carb bowl passage.



Mikuni carb bowl drain screws:

HCP865 OEM Mikuni carb BOWL DRAIN SCREW, bright plated, alloy steel, panhead, phillips drive drain screw features the machined land just below the head for the acceptance of the HCP4400 o-ring listed below (the o-ring is not included). This style drain screw is used on all XJ550, XJ650 Turbo, all XJ900RK, RL, N/FN, and F models, XJ1100, and all 1981 XS1100 models, although it will also fit all 1984-85 FJ600, 1992-98 XJ600 Seca II, XJ700-X, and XJ750-X models as well (this bikes used a drain screw without an o-ring, but this drain screw is the same size/shape). Is also correct for all of the following models: 1981-83 XS400, 1981 XS650, 1987-88, 1990, and 1995-00 XV535 Virago, 1980-82 SR250, 1981-82 XT250, 1980-82 TT250, 1983 XV500, 1980-81 XT500, 1980-81 SR500, 1982-83 XZ550, 1983-85 XVZ12, 1986-90 XVZ13, 1985-86 and 1989-2007 VMX12 V-Max models. Each:
$ 10.95

HCP865SET4 OEM Mikuni carb BOWL DRAIN SCREWS, set of 4:
$ 39.95


HCP14530 Aftermarket Mikuni carb BOWL DRAIN SCREW, brass, straight-blade drive drain screw features the machined land just below the head for the acceptance of the sealing o-ring (the o-ring is included). This style drain screw is used on all XJ550, XJ650 Turbo, all XJ900RK, RL, N/FN, and F models, XJ1100, and all 1981 XS1100 models, although it will also fit all 1984-85 FJ600, 1992-98 XJ600 Seca II, XJ700-X, and XJ750-X models as well (this bikes used a drain screw without an o-ring, but this drain screw is the same size/shape). Is also correct for all of the following models: 1981-83 XS400, 1981 XS650, 1987-88, 1990, and 1995-00 XV535 Virago, 1980-82 SR250, 1981-82 XT250, 1980-82 TT250, 1983 XV500, 1980-81 XT500, 1980-81 SR500, 1982-83 XZ550, 1983-85 XVZ12, 1986-90 XVZ13, 1985-86 and 1989-2007 VMX12 V-Max models. Each:
$ 6.95

HCP14530SET4 Aftermarket Mikuni carb BOWL DRAIN SCREWS, set of 4:
$ 24.95



HCP4400 OEM Mikuni carb bowl drain screw O-RING, for the HCP865 or HCP14530 drain screws listed above. Each:
$ 2.95

HCP18664 Aftermarket Mikuni carb bowl drain screw O-RING, for the HCP865 or HCP14530 drain screws listed above. Each:
$ 2.50




HCP4399 OEM Mikuni carb BOWL DRAIN SCREW, correct bright plated, alloy steel, panhead, phillips drive drain screw. This style drain screw does NOT use (nor can it accept) an o-ring and is correct for all 1984-85 FJ600, 1986-88 FZ600, 1986-1990 YX600 Radian, 1992-98 XJ600 Seca II, XJ700-X, and XJ750-X models, but can also be used successfully on all XJ550, XJ650 Turbo, all XJ900RK, RL, N/FN, and F models, XJ1100, and all 1981 XS1100 models, as well as all of the following models: 1981-83 XS400, 1981 XS650, 1987-88, 1990, and 1995-00 XV535 Virago, 1980-82 SR250, 1981-82 XT250, 1980-82 TT250, 1983 XV500, 1980-81 XT500, 1980-81 SR500, 1982-83 XZ550, 1983-85 XVZ12, 1986-90 XVZ13, 1985-86 and 1989-2007 VMX12 V-Max models. Each:
$ 7.95

HCP4399SET4 OEM Mikuni carb BOWL DRAIN SCREWS, set of 4:
$ 29.95


HCP16326 Aftermarket Mikuni carb BOWL DRAIN SCREW, brass, straight-blade drive drain screw. This style drain screw does NOT use (nor can it accept) an o-ring and is correct for all 1984-85 FJ600, 1986-88 FZ600, 1986-1990 YX600 Radian, 1992-98 XJ600 Seca II, XJ700-X, and XJ750-X models, but can also be used successfully on all XJ550, FJ600, XJ650 Turbo, all XJ900RK, RL, N/FN, and F models, XJ1100, and all 1981 XS1100 models, as well as all of the following models: 1981-83 XS400, 1981 XS650, 1987-88, 1990, and 1995-00 XV535 Virago, 1980-82 SR250, 1981-82 XT250, 1980-82 TT250, 1983 XV500, 1980-81 XT500, 1980-81 SR500, 1982-83 XZ550, 1983-85 XVZ12, 1986-90 XVZ13, 1985-86 and 1989-2007 VMX12 V-Max models. Each:
$ 6.95

HCP16326SET4 Aftermarket Mikuni carb BOWL DRAIN SCREWS, set of 4:
$ 24.95




HCP22879 OEM Mikuni carb BOWL DRAIN SCREW GASKET, for use with the bowl drain screw in the center/bottom of the bowl (and not the bowl drain screw that comes in from the side of the bowl as used on some models). Use 1 per bowl on all 1979-80 XS1100 models, and on 1981 XS1100 Standard models. Each:
$ 2.95

HCP22879SET4 OEM Mikuni carb BOWL DRAIN SCREW GASKET, set of 4:
$ 10.95


HCP10028 Aftermarket Mikuni carb BOWL DRAIN SCREW GASKET, for use with the bowl drain screw in the center/bottom of the bowl (and not the bowl drain screw that comes in from the side of the bowl as used on some models). Use 1 per bowl on all 1979-80 XS1100 models, and on 1981 XS1100 Standard models. Each:
$ 1.95

HCP10028SET4 Aftermarket Mikuni carb BOWL DRAIN SCREW GASKET, set of 4:
$ 6.95




ds2) Aftermarket Mikuni carb BOWL DRAIN SCREW. Bright finish 18-8 stainless steel socker head, hex-drive, taper-point screw fits into the drain hole passage of each carb bowl. Works better than the original Yamaha screw; not only is it made of stainless steel, but the larger socket-head design allows for more torque to be applied to the screw, forever ending the stripped/stuck/ruined drain screw problem that has plagued Yamaha owners forever!

Fits all XJ550, 1984-85 FJ600, 1986-88 FZ600, 1986-1990 YX600 Radian, 1992-98 XJ600 Seca II, XJ700-X, XJ750-X, all XJ900 models, XJ1100, and all 1981 XS1100 carb bowls. The original drain screws on those all models (except the 1984-85 FJ600, 1992-98 XJ600 Seca II, XJ700-X, and XJ750-X) had an integral o-ring, which is not present on this replacement style screw. But the lack of the o-ring on this replacement screw presents absolutely no fit or sealing/leakage issues on those models originally equipped with a bowl drain screw that used an o-ring.

Note that by their design, the large socket head portion of this drain screw will be located OUTSIDE of the drain screw bore hole in the bowl, and sticks out about 1/8" from the bowl body. This additional length does not cause any problems, and after looking at them (installed) on the carb bowls, at first glance they might look "odd" the way the stick out, but after the third or fourth look, they appear normal and oddly interesting with that extended length.

NOTE: do NOT "bottom" the heads of these screws against the bowl! Tighten them to 4-5 foot-pounds of torque, just enough to seat them snugly. That is all that is necessary to prevent fuel leakage from the drain port.

NOTE: on some models, you may have to file away a tiny amount of metal on the outside of the bowl to obtain enough clearance for the head of the screw to clear and seat itself deep enough to fully cut off fuel flow thru the drain port.

It is recommended that anti-seize compound be used on the screw threads when fitting them into the carb bowl passage.


HCP8879 Aftermarket Mikuni socket head, hex-drive, 18-8 stainless-steel carb BOWL DRAIN SCREW, each:
$ 9.95

HCP8879SET4 Aftermarket Mikuni carb BOWL DRAIN SCREWS, set of 4:
$ 34.95



Anti-Seize Lubricants:

xx1) Fastener ANTI-SEIZE PASTE. Yeah, it's smelly and makes a slippery mess on your fingers, but this stuff is a life-saver for any true wrencher, because it prevents problems down the road. Use it on any metal fastener that does not require a "loctite" thread-locker material to be used. This means on just about every fastener that is carb, engine case, or suspension-related! (except for carb upper and lower rack-mount screws and butterfly valve screws, which do require the use of a thread-lock fluid). If you think that it might, sometime, in the future, need to come off: use anti-seize compound! NOTE: the "base" metal material used in the different anti-seize pastes below do not determine what type of fastener to use such pastes on; it merely signifies what base material is used to create the anti-seize paste. You can use any "base-metal" anti-seize paste on any type of fastener and metal.

NOTE: the use of anti-seize compounds will result in a TORQUE-MULTIPLYING EFFECT……..the result of a reduction in friction between the threaded contact points……and thus fasteners treated with anti-seize compound should have their torque values reduced by at least 10-15% when installed into steel material, and up to 25% into aluminum materials or other “soft” metals” (such as spark plugs into cylinder heads, or almost any other type of fastener into the engine) …… note that this rule applies only to service manual torque specifications on fasteners that are not indicated to be treated with anti-seize fluid by the factory …. if the factory manual specifies the use of an anti-seize coating, then the specified torque value for that fitting already takes into account the “reduced torque” necessary.

http://raskcycle.com/techtip/webdoc14.html

http://www.cncexpo.com/MetricBoltTorqueNm.aspx

http://www.bmwmotorcycletech.info/sparkplugs.htm

http://www.antiseize.com/pdf/torque_specifications.pdf


HCP1264 Aftermarket fastener ANTI-SEIZE PASTE, standard grade aluminum-based in a 1-ounce squeeze tube, for smaller jobs.
$ 5.95

HCP1265 Aftermarket fastener ANTI-SEIZE PASTE, standard grade aluminum-based formula in a 4-ounce tub with a brush-lid, for larger jobs.
$ 7.95

HCP9784 Aftermarket fastener ANTI-SEIZE PASTE, standard grade aluminum-based formula in an 8-ounce tub with a brush-lid, a lifetime supply for your motorcycle!
$ 12.95

HCP9763 Aftermarket fastener ANTI-SEIZE PASTE, standard-grade copper-based formula in an 8-ounce tub with a brush-lid, a lifetime supply for your motorcycle!
$ 12.95

HCP9764 Aftermarket fastener ANTI-SEIZE PASTE, premium-grade nickel-based formula in an 8-ounce tub with a brush-lid, a lifetime supply for your motorcycle!
$ 17.95


NOTE: the following product(s) can only be shipped via ground transport (which thus eliminates the Priority Mail level of service for this item) and cannot (and will not----don't even ask!) be shipped outside of the continental USA. Therefore it may have to be shipped in a separate package from the remainder of your order, and will thus incur additional shipping charges.

HCP20860 Aftermarket industrial-strength ASSEMBLY LUBE, in a standard 12-ounce aerosol can. Heavy-duty formula includes graphite to not only enhance and speed up the penetrant action, but also gets down into the pores of the metal for the greatest possible lubrication possible. Won't wash away, protect against rust and corrosion, stable from 0-degrees up to 250-F. This fluid is also a great choice for use as a drive cable lubricant.
$ 21.95

HCP20862 Aftermarket super-duty ASSEMBLY LUBE, in a generous 10-ounce aerosol can. The cat's-meow of lubricants, infused with pure moly disulfide, it goes on wet and then dries in 1-2 hours to a super-slick, high-pressure, hi-temp, bearing-like finish which provides the ultimate level of protection. Prevents rust and corrosion, won't wash off, throw off, and won't attract dust or dirt. Surfaces must be clean and dry of previous oils, etc. before application. Can even be used as an engine, tranny, and drivetrain assembly lube!
$ 24.95

HCP20863 Aftermarket super-duty GRAPHITE LUBE, in a generous 10-ounce aerosol can. The 800-pound gorilla of lubricants, it's infused with pure graphite, goes on wet, and then dries in 10 minutes to a super-slick, high-pressure, bearing-like finish which provides the ultimate level of protection. Prevents rust, won't wash off, throw off, and won't attract dust or dirt. Surfaces must be clean and dry of previous oils, etc. before application. Can be used as an engine assembly lube, bearing or bushing pre-lube, great for lock cylinders, and all metallic sliding surfaces. Use where dusty or dirty conditions render oil-based lubricants ineffective or undesirable.
$ 21.95




NOTE: good used carb bodies and float bowls are also available, please inquire.


MIKUNI FUEL SYSTEM HARDWARE:

MIKUNI CARB HARDWARE KITS:

chk1) While you’re completing your carb rebuild efforts, you’ve probably noticed that many of the fasteners and associated hardware pieces are buggered, rusty, incorrect, or worse. Since your carbs will soon be performing as new, why not make them look like new, too? These MIKUNI CARB FASTENERS KITS and MIKUNI CARB HARDWARE KITS contain all of the major external hardware or fasteners needed to refresh them like a pro, and at an affordable price.


Mikuni Carb Fasteners Kits:

These fastener kits contain all of the major and minor fasteners that you’ll need to refresh a set of carbs, and are available in a variety of material and finishes to suit your particular preferences. NOTE: throttle shaft hardware (butterfly valves screws, shaft end clips, etc) and bowl drain screws are not included in any of these kits, since those items are already contained in the various carb rebuild kits listed previously.

Each kit contains the following items in matching finishes and head styles:
* matched set of carb “hat” screws.
* matched set of carb bowl-to-body screws and lockwashers.
* matched set of carb upper rack bracket screws.
* matched set of carb lower rack bracket screws (the XJ550 kits also contain the lockwashers, which were not used on any other models).
* matched set of starter shaft clamp retaining screw and lockwasher (these screws are not included on some kits, see details).
* matched set of starter plunger bracket-to-shaft set screws.
* matched set of carb idle speed bracket-to-lower rack bracket screw and lockwasher.
* an idle speed screw plastic washer (not original, but a great addition to have!)
* XJ650 Turbo hardware kits also contain the fuel pressure regulator to mounting bracket net and washer, the fuel pressure regulator/check valve-to-hat bracket screws and lockwashers, and the check valve to mounting bracket screw and lockwasher.
* XJ1100 hardware kits also contain the fuel distribution valve-to-bracket screws and washers, and its bracket-to-hat screws and lockwasher.

Here are some quick guides that shows the different head and drive styles:



https://www.boltdepot.com/fastener-information/Printable-Tools/Type-Chart.pdf

http://www.oocities.org/dtmcbride/home_garden/fasteners.html


And since you'll want your new hardware to not only look nice, but fit well, the following professional quality tool-steel thread chaser taps will allow you to either "clean-up" or re-thread distorted or stripped threads in all metals, soft (aluminum) to hard (steel).

NOTE: THE FOLLOWING TOOL KITS ARE AVAILABLE FOR RENTAL!!: some tools are a one-time or infrequent use tool, so it may be more economical for you to rent them from us, rather than to purchase outright. Please see the “rental” section within the THE TOOLBOX section of our catalog at:

http://xjbikes.com/forums/index.php?threads/xj-parts-catalog-section-p-the-toolbox.44630

and review the availability and procedures in the TOOL RENTAL section.

HCP28194 Aftermarket carb body THREAD CHASER BASIC TAPS SET. This basic set of 6 taps contains all of the different sizes for the most commonly needed threaded holes on all Hitachi and Mikuni carb bodies. Almost all threaded will exhibit some type of thread wear (distortion) or minor injury that should be repaired, especially to the smaller, more “fragile” threads on the mixture screw bores, the fuel and are jets threads, the bowl, hat, and bracket mounting holes, etc. Running thread taps thru all of these threaded holes in the carb bodies will not only make the re-assembly process easier, smoother, and more secure, but there is a certain satisfaction and surety that comes with having like-new threads that can only be described as “machinist porn” (those of you that know, will know what I mean!). Correct size taps will do the upper and lower rack bracket holes, the float bowl attachment holes, the float bowl drain screw holes, the carb hat attachment holes, synch screws and idle speed bolt holes, the Mikuni float valve seat bracket hole, Mikuni main jet needle retainer plate holes (inside the vacuum piston), all air jet and fuel jet holes, enrichment plunger lifter bracket holes, and throttle shaft butterfly valve mounting holes. Comes with a can of cutting fluid and a t-handle tap holder tool. Note that unlike the complete taps set below (HCP28121), the taps for the Hitachi float valve seat and the choke plunger seat bores (on all Hitachi and Mikuni models) are not included in this set (those larger taps are what add significantly to the cost of the complete taps set). NOTE: due to the reality that you may use these tools only once, it is suggested that you use the tool rental option for this tap set. However, under the rental option, if you use the taps for actual thread tapping (cutting brand new threads in a newly drilled hole), then the return option is not allowed!
$ 99.95

HCP28121 Aftermarket carb body THREAD CHASER COMPLETE TAPS SET. This complete set of 9 taps contains all of the different sizes of threads found on all Hitachi and Mikuni carb bodies. Almost all threaded will exhibit some type of thread wear (distortion) or minor injury that should be repaired, especially to the smaller, more “fragile” threads on the mixture screw bores, the fuel and are jets threads, etc. Running thread taps thru all of the threaded holes in the carb bodies will not only make the re-assembly process easier, smoother, and more secure, but there is a certain satisfaction and surety that comes with having like-new threads that can only be described as “machinist porn” (those of you that know, will know what I mean!). Correct size taps will do the upper and lower rack bracket holes, the float bowl attachment holes, the float bowl drain screw holes, the carb hat attachment holes, synch screws and idle speed bolt holes, the choke plunger seat holes, the Mikuni float valve seat bracket hole, the Hitachi float valve seat hole, Mikuni main jet needle retainer plate holes (inside the vacuum piston), all air jet and fuel jet holes, enrichment plunger lifter bracket holes, and throttle shaft butterfly valve mounting holes. Comes with a can of cutting fluid and a t-handle tap holder tool. NOTE: due to the expense of this kit, and the reality that you may use these tools only once, it is suggested that you use the tool rental option for this tap set. However, under the rental option, if you use the taps for actual thread tapping (cutting brand new threads in a newly drilled hole), then the return option is not allowed!
$ 149.95



HCP21614 Aftermarket BS28 series MIKUNI CARB FASTENERS KIT, featuring zinc-plated alloy steel components with original-style panhead, phillips-drive screws. Note that the starter bracket set screws contained in this kit do not have the original phillips-drive style screws, but feature straight-slot drive set screws instead. The starter cable bracket clamp screws are not included in this kit. Fits all XJ550 model carbs.
$ 44.95

HCP21619 Aftermarket BS32 series MIKUNI CARB FASTENERS KIT, featuring zinc-plated alloy steel components with original-style panhead, phillips-drive screws. Note that the starter bracket set screws contained in this kit do not have the original phillips-drive style screws, but feature straight-slot drive set screws instead. The starter cable bracket clamp screws are not included in this kit. Fits all 1984-85 FJ600 model carbs.
$ 44.95

HCP21624 Aftermarket BS30 series MIKUNI CARB FASTENERS KIT, featuring zinc-plated alloy steel components with original-style panhead, phillips-drive screws. Note that the starter cable bracket clamp screws are not contained in this kit. Fits all XJ650 Turbo model carbs.
$ 49.95

HCP21629 Aftermarket BS33 series MIKUNI CARB FASTENERS KIT, featuring zinc-plated alloy steel components with original-style panhead, phillips-drive screws. Note that the starter cable bracket clamp screws are not contained in this kit. Fits all XJ700-X and XJ750-X model carbs.
$ 47.95

HCP21634 Aftermarket BS35/36 series MIKUNI CARB FASTENERS KIT, featuring zinc-plated alloy steel components with original-style panhead, phillips-drive screws. Note that the starter cable bracket clamp screws are not contained in this kit. Fits all XJ900 model carbs.
$ 47.95

HCP21639 Aftermarket BS34 series MIKUNI CARB FASTENERS KIT, featuring zinc-plated alloy steel components with original-style panhead, phillips-drive screws. Note that the starter cable bracket clamp screws are not contained in this kit. Fits all XJ11100 model carbs.
$ 44.95



HCP21615 Aftermarket BS28 series MIKUNI CARB FASTENERS KIT, featuring bright 18/8 stainless steel components with original-style panhead, phillips-drive screws. Note that the starter bracket set screws contained in this kit do not have the original phillips-drive style screws, but feature straight-slot drive set screws instead. The starter cable bracket clamp screws are not included in this kit. Fits all XJ550 model carbs.
$ 47.95

HCP21620 Aftermarket BS32 series MIKUNI CARB FASTENERS KIT, featuring bright 18/8 stainless steel components with original-style panhead, phillips-drive screws. Note that the starter bracket set screws contained in this kit do not have the original phillips-drive style screws, but feature straight-slot drive set screws instead. The starter cable bracket clamp screws are not included in this kit. Fits all 1984-85 FJ600 model carbs.
$ 47.95

HCP21625 Aftermarket BS30 series MIKUNI CARB FASTENERS KIT, featuring bright 18/8 stainless steel components with original-style panhead, phillips-drive screws. Note that the starter cable bracket clamp screws are not contained in this kit. Fits all XJ650 Turbo model carbs.
$ 57.95

HCP21630 Aftermarket BS33 series MIKUNI CARB FASTENERS KIT, featuring bright 18/8 stainless steel components with original-style panhead, phillips-drive screws. Note that the starter cable bracket clamp screws are not contained in this kit. Fits all XJ700-X and XJ750-X model carbs.
$ 47.95

HCP21635 Aftermarket BS35/36 series MIKUNI CARB FASTENER KIT, featuring bright 18/8 stainless steel components with original-style panhead, phillips-drive screws. Note that the starter cable bracket clamp screws are not contained in this kit. Fits all XJ900 model carbs.
$ 49.95

HCP21640 Aftermarket BS34 series MIKUNI CARB FASTENERS KIT, featuring bright 18/8 stainless steel components with original-style panhead, phillips-drive screws. Note that the starter cable bracket clamp screws are not contained in this kit. Fits all XJ11100 model carbs.
$ 57.95



HCP21616 Aftermarket BS28 series MIKUNI CARB FASTENERS KIT, featuring bright 18/8 stainless steel components with polished button-head, hex-drive screws. Fits all XJ550 model carbs.
$ 42.95

HCP21621 Aftermarket BS32 series MIKUNI CARB FASTENERS KIT, featuring bright 18/8 stainless steel components with polished button-head, hex-drive screws. Fits all 1984-85 FJ600 model carbs.
$ 44.95

HCP21626 Aftermarket BS30 series MIKUNI CARB FASTENERS KIT, featuring bright 18/8 stainless steel components with polished button-head, hex-drive screws. Fits all XJ650 Turbo model carbs.
$ 52.95

HCP21631 Aftermarket BS33 series MIKUNI CARB FASTENERS KIT, featuring bright 18/8 stainless steel components with polished button-head, hex-drive screws. Fits all XJ700-X and XJ750-X model carbs.
$ 44.95

HCP21636 Aftermarket BS35/36 series MIKUNI CARB FASTENERS KIT, featuring bright 18/8 stainless steel components with polished button-head, hex-drive screws. Fits all XJ900 model carbs.
$ 44.95

HCP21641 Aftermarket BS34 series MIKUNI CARB FASTENERS KIT, featuring bright 18/8 stainless steel components with polished button-head, hex-drive screws. Fits all XJ11100 model carbs.
$ 54.95



HCP21617 Aftermarket BS28 series MIKUNI CARB FASTENERS KIT, featuring bright 18/8 stainless steel components with smooth socket-head, hex-drive screws. Fits all XJ550 model carbs.
$ 39.95

HCP21622 Aftermarket BS32 series MIKUNI CARB FASTENERS KIT, featuring bright 18/8 stainless steel components with smooth socket-head, hex-drive screws. Fits all 1984-85 FJ600 model carbs.
$ 39.95

HCP21627 Aftermarket BS30 series MIKUNI CARB FASTENERS KIT, featuring bright 18/8 stainless steel components with smooth socket-head, hex-drive screws. Fits all XJ650 Turbo model carbs.
$ 42.95

HCP21632 Aftermarket BS33 series MIKUNI CARB FASTENERS KIT, featuring bright 18/8 stainless steel components with smooth socket-head screws. Fits all XJ700-X and XJ750-X model carbs.
$ 39.95

HCP21637 Aftermarket BS35/36 series MIKUNI CARB FASTENERS KIT, featuring bright 18/8 stainless steel components with smooth socket-head, hex-drive screws. Fits all XJ900 model carbs.
$ 39.95

HCP21642 Aftermarket BS34 series MIKUNI CARB FASTENERS KIT, featuring bright 18/8 stainless steel components with smooth socket-head, hex-drive screws. Fits all XJ11100 model carbs.
$ 52.95



HCP21618 Aftermarket BS28 series MIKUNI CARB FASTENERS KIT, featuring black alloy steel components with knurled socket-head, hex-drive screws. Fits all XJ550 model carbs.
$ 34.95

HCP21623 Aftermarket BS32 series MIKUNI CARB FASTENERS KIT, featuring black alloy steel components with knurled socket-head, hex-drive screws. Fits all 1984-85 FJ600 model carbs.
$ 34.95

HCP21628 Aftermarket BS30 series MIKUNI CARB FASTENERS KIT, featuring black alloy steel components with knurled socket-head, hex-drive screws. Fits all XJ650 Turbo model carbs.
$ 39.95

HCP21633 Aftermarket BS33 series MIKUNI CARB FASTENERS KIT, featuring black alloy steel components with knurled socket-head, hex-drive screws. Fits all XJ700-X and XJ750-X model carbs.
$ 36.95

HCP21638 Aftermarket BS35/36 series MIKUNI CARB FASTENERS KIT, featuring black alloy steel components with knurled socket-head, hex-drive screws. Fits all XJ900 model carbs.
$ 34.95

HCP21643 Aftermarket BS34 series MIKUNI CARB FASTENERS KIT, featuring black alloy steel components with knurled socket-head, hex-drive screws. Fits all XJ11100 model carbs.
$ 42.95




Mikuni Carb Brackets Kits:

Kick it up a notch (or two)……..heck, kick it up to an 11 with these carb bracket kits which contain beautifully re-plated original major and minor brackets, hose clips, and more. Kits vary from model to model in their contents. NOTE: most of the pieces in these kits are re-plated, used parts, and as such, may have minor cosmetic flaws (tooling marks, fastener marks, etc.). Most such marks will not be visible once installed. Also, all re-plated items require a refundable core charge which will be credited back to you upon the return of all of the same-model, same-type kit contents. Since these are re-plated used parts, we do require an exchange for your original parts so we can have a steady supply of parts to be processed and re-plated for future sales.

HCP23825 Aftermarket BS28 series MIKUNI CARB BRACKETS KIT features a complete set of new or re-plated original brackets listed below. Fits all 1981-84 XJ550 models carbs. NOTE: requires a $ 125.00 core charge, refundable upon the return of all undamaged, same-model, same-type kit contents.
$ 179.95 + $ 125.00 refundable core charge

1 x HCP5480 re-plated upper rack bracket
1 x HCP5481 re-plated lower rack bracket
1 x HCP5487 re-plated lower rack idle speed guide bracket
1 x HCP5156 re-plated choke shaft
1 x HCP5157 re-plated choke shaft spring
4 x HCP5163 re-plated choke plunger lifter brackets
1 x HCP5181 re-plated choke cable bracket (on the #1 hat, front position)
1 x HCP5489 re-plated choke cable bracket clamp
1 x HCP4561 re-plated or oem choke cable bracket clamp screw
1 x HCP5490 re-plated throttle cable bracket (on the #2 hat, inner position)
1 x HCP5161 re-plated idle speed bolt
1 x HCP5162 re-plated idle speed bolt spring
1 x HCP9848 aftermarket idle speed screw grommet
3 x HCP5159 re-plated synch screws
3 x HCP5155 re-plated synch screw springs
3 x HCP5160 re-plated synch screw “plunger” springs

NOTE: the above kit does not include the HCP5488 lower HEAT SHIELD and it should be ordered separate if desired:

HCP5488RP OEM re-plated carb lower rack bracket BOWL HEAT SHIELD, this large curved should covers the entire length and width of the carb rack and is fastened to the lower rack bracket. Beautiful silver-zinc plating brings the bottom side of these carbs to life. Fits all BS28-series carbs as used on XJ550 Maxim, Seca, and XJ550 Euro models. NOTE: requires a $ 25.00 core charge, refundable upon the return of an undamaged, same-model, same-type shield.
$ 49.95 + $ 25.00 refundable core charge




HCP23826 Aftermarket BS30 series MIKUNI CARB BRACKETS KIT features a complete set of new or re-plated original brackets listed below. Fits all 1982-83 XJ650 Turbo carbs. NOTE: requires a $ 125.00 core charge, refundable upon the return of all undamaged, same-model, same-type kit contents.
$ 189.95 + $ 125.00 refundable core charge

1 x HCP14255 re-plated upper rack bracket
1 x HCP14256 re-plated lower rack bracket
1 x HCP14257 re-plated lower rack idle speed guide bracket
1 xHCP14203 re-plated choke shaft
2 x HCP14200 re-plated choke plunger lifter brackets (for carbs #1/2)
1 x HCP14201 re-plated choke plunger lifter bracket (for carb #3)
1 x HCP14202 re-plated choke plunger lifter bracket (for carb #4)
1 x HCP17729 re-plated choke cable bracket (on the #3 hat, outer position)
1 x HCP17725 re-plated choke cable bracket clamp
1 x HCP17726 re-plated choke cable bracket clamp screw
1 x HCP10433 re-plated throttle cable bracket (on the #3 hat, inner position)
1 x HCP7411 re-plated pressure regulator bracket on the #3 hat, inner position)
1 x HCP5161 re-plated idle speed bolt
1 x HCP5162 re-plated idle speed bolt spring
1 x HCP9848 aftermarket idle speed screw grommet
3 x HCP5159 re-plated synch screws
3 x HCP5155 re-plated synch screw springs
3 x HCP5160 re-plated synch screw “plunger” springs
1 x HCP21530 aftermarket pressure sensor vaccum hose clip (on the #1 hat, rear inner position)
1 x HCP17727 re-plated oem or HCP21527 aftermarket clutch cable upper rack bracket clip (on the #3 carb outer screw position)




HCP23827 Aftermarket BS33 series MIKUNI CARB BRACKETS KIT features a complete set of new or re-plated original brackets listed below. Fits all 1985-86 XJ700--X and XJ750-X carbs. NOTE: requires a $ 125.00 core charge, refundable upon the return of all undamaged, same-model, same-type kit contents.
$ 179.95 + $ 125.00 refundable core charge

1 x HCP16337 re-plated upper rack bracket
2 x HCP14413 re-plated upper rack bracket extensions
1 x HCP16639 re-plated lower rack bracket
1 x HCP14257 re-plated lower rack idle speed guide bracket
2 x HCP17741 re-plated lower rack bracket extensions
1 x HCP17755 re-plated choke shaft
2 x HCP14200 re-plated choke plunger lifter finger brackets (for carbs #1/2)
1 x HCP16791 re-plated choke plunger lifter finger bracket (for carb #3)
1 x HCP14202 re-plated choke plunger lifter finger bracket (for carb #4)
1 x HCP17733 re-plated choke cable bracket (on the #3 hat, outer position)
1 x HCP17737 re-plated choke cable bracket clamp
1 x HCP17726 re-plated choke cable bracket clamp screw
1 x HCP17731 re-plated throttle cable bracket (on the #3 hat, inner positions)
1 x HCP5161 re-plated idle speed bolt
1 x HCP5162 re-plated idle speed bolt spring
1 x HCP9848 aftermarket idle speed screw grommet
3 x HCP5159 re-plated synch screws
3 x HCP5155 re-plated synch screw springs
3 x HCP5160 re-plated synch screw “plunger” springs
1 x HCP17728 re-plated oem or HCP21524 aftermarket clutch cable upper rack bracket clip (on the #3 carb outer screw position)




HCP23828 Aftermarket BS35 and BS36 series MIKUNI CARB BRACKETS KIT features a complete set of new or re-plated original brackets listed below. Fits all 1983-89 XJ900RK, RL, F, N, and FN model carbs. NOTE: requires a $ 125.00 core charge, refundable upon the return of all undamaged, same-model, same-type kit contents.
$ 199.95 + $ 125.00 refundable core charge

1 x HCP16338 re-plated upper rack bracket
1 x HCP16340 re-plated lower rack bracket
1 x HCP14257 re-plated lower rack idle speed guide bracket
1 x HCP17756 re-plated choke shaft
4 x HCP16792 re-plated choke plunger lifter brackets
1 x HCP16794 re-plated choke plunger lifter brackets (on the #4 carb at the outer end of shaft)
1 x HCP17734 re-plated choke cable bracket (#4 hat inner)
1 x HCP17725 re-plated choke cable bracket clamp
1 x HCP17726 re-plated choke cable bracket clamp screw
1 x HCP17732 re-plated throttle cable bracket (on the #3 hat, inner positions)
1 x HCP5161 re-plated idle speed bolt
1 x HCP5162 re-plated idle speed bolt spring
1 x HCP9848 aftermarket idle speed screw grommet
3 x HCP5159 re-plated synch screws
3 x HCP5155 re-plated synch screw springs
3 x HCP5160 re-plated synch screw “plunger” springs
1 x HCP18302 re-plated oem or HCP23813 aftermarket vacuum hose clip (on the #2 carb, rear inner position)
1 x HCP17735 re-plated oem or HCP21528 aftermarket clutch cable upper rack bracket clip on the #3 carb outer screw position)




HCP23829 Aftermarket BS34 series MIKUNI CARB BRACKETS KIT features a complete set of new or re-plated original brackets listed below. Fits all 1982-84 XJ1100 carbs. NOTE: requires a $ 125.00 core charge, refundable upon the return of all undamaged, same-model, same-type kit contents.
$ 199.95 + $ 125.00 refundable core charge

1 x HCP16338 re-plated upper rack bracket
1 x HCP16341 re-plated lower rack bracket
1 x HCP18260 re-plated lower rack idle speed guide bracket
1 x HCP17756 re-plated choke shaft
4 x HCP16792 re-plated choke plunger lifter brackets
1 x HCP16794 re-plated choke plunger lifter brackets (on the #4 carb at the outer end of shaft)
1 x HCP17734 re-plated choke cable bracket (on the #4 hat, inner position)
1 x HCP17725 re-plated choke cable bracket clamp
1 x HCP17726 re-plated choke cable bracket clamp screw
1 x HCP17732 re-plated throttle cable bracket (on the #3 hat, inner position)
1 x HCP9808 re-plated idle speed bolt
1 x HCP9812 re-plated idle speed bolt spring
3 x HCP18380 re-plated synch screws
3 x HCP5155 re-plated synch screw springs
3 x HCP18382 re-plated synch screw plungers
3 x HCP23846 aftermarket plunger circlips
3 x HCP18383 re-plated synch screw plunger springs
1 x HCP18395 re-plated oem or HCP21529 aftermarket clutch cable hat clip (on the #4 hat, front outer position)
1 x HCP18345 re-plated fuel valve curved bracket (on the #1 hat, inner position)
1 x HCP5416 re-plated fuel valve L-bracket (attaches to hcp18345 bracket above)




INDIVIDUAL MIKUNI CARB HARDWARE COMPONENTS:

MIKUNI CARB HAT HARDWARE:

Mikuni Carb Hat Brackets:

Our re-plated Mikuni carb diaphram cover (chrome "dome" or "Hat") individual BRACKETS allow you to re-create the original look and beauty of these carb racks. These parts are available re-plated to their correct original silver- or yellow-zinc appearance. If you need to replace any missing hardware, or just want to create a show-winning look, then you should start your shopping list here! NOTE: all synch hardware pieces are re-plated, used parts, and as such, may have minor cosmetic flaws (tooling marks, fastener marks, etc.). Most such marks will not be visible once installed. Also, all re-plated items require a refundable core charge which will be credited back to you once you return a same-model, same-type of item(s) as you purchased. Since these are re-plated used parts, we do require an exchange for your original parts so we can have a steady supply of parts to be processed and re-plated for future sales.


HCP5181RP OEM re-plated carb hat CHOKE CABLE BRACKET, mounted on the #1 hat front position. Beautiful yellow-zinc plating brings the top side of these carbs to life. Fits all BS28-series carbs as used on all XJ550 models. Does not include the HCP5489RP clamp or the HCP4561RP clamp screw listed below. NOTE: requires a $ 25.00 core charge, refundable upon the return of an undamaged, same-model, same-type bracket.
$ 39.95 + $ 25.00 refundable core charge

HCP17729RP OEM re-plated carb hat CHOKE CABLE BRACKET, mounted on the #3 hat outer position. Beautiful yellow-zinc plating brings the top side of these carbs to life. Fits all BS30-series carbs as used on all XJ650 Turbo models. Does not include the HCP17725RP clamp or the HCP17726RP clamp screw listed below. NOTE: requires a $ 25.00 core charge, refundable upon the return of an undamaged, same-model, same-type bracket.
$ 39.95 + $ 25.00 refundable core charge

HCP17733RP OEM re-plated carb hat CHOKE CABLE BRACKET, mounted on the #3 hat outer position. Beautiful yellow-zinc plating brings the top side of these carbs to life. Fits all BS33-series carbs as used on all water-cooled XJ700-X and XJ750-X models. Does not include the HCP17737RP clamp or the HCP17726RP clamp screw listed below. NOTE: requires a $ 25.00 core charge, refundable upon the return of an undamaged, same-model, same-type bracket.
$ 39.95 + $ 25.00 refundable core charge

HCP17734RP OEM re-plated carb hat CHOKE CABLE BRACKET, mounted on the #4 hat inner position. Beautiful yellow-zinc plating brings the top side of these carbs to life. Fits all BS35- and BS36-series carbs as used on XJ900 models and on XJ1100 (BS34 carbs) models. Does not include the HCP17725RP clamp or the HCP17726RP clamp screw listed below. NOTE: requires a $ 25.00 core charge, refundable upon the return of an undamaged, same-model, same-type bracket.
$ 39.95 + $ 25.00 refundable core charge



HCP5489RP OEM re-plated carb hat choke cable bracket CLAMP, mounts to the HCP5181RP choke cable bracket listed above. Beautiful yellow-zinc plating brings the top side of these carbs to life. Fits all BS28-series carbs as used on all XJ550 models. . Does not include the HCP4561 clamp screw listed below. NOTE: requires a $ 15.00 core charge, refundable upon the return of an undamaged, same-model, same-type clamp.
$ 17.95 + $ 15.00 refundable core charge

HCP17725RP OEM re-plated carb hat choke cable bracket CLAMP, mounts to the HCP17729RP choke cable bracket listed above. Beautiful yellow-zinc plating brings the top side of these carbs to life. Fits all XJ650 Turbo, all XJ900 (BS35 and BS36 series carbs), and all XJ1100 (BS34 carbs) models. Does not include the HCP4561 clamp screw listed below. NOTE: requires a $ 15.00 core charge, refundable upon the return of an undamaged, same-model, same-type clamp.
$ 17.95 + $ 15.00 refundable core charge

HCP17737RP OEM re-plated carb hat choke cable bracket CLAMP, mounts to the HCP17729RP choke cable bracket listed above. Beautiful yellow-zinc plating brings the top side of these carbs to life. Fits all BS33-series carbs as used on all water-cooled XJ700-X and XJ750-X models. Does not include the HCP17726RP clamp screw listed below. NOTE: requires a $ 15.00 core charge, refundable upon the return of an undamaged, same-model, same-type clamp.
$ 19.95 + $ 15.00 refundable core charge



HCP4561RP OEM re-plated carb hat choke cable bracket CLAMP SCREW, mounts the choke cable clamp to the choke cable bracket on all XJ550 models. Beautiful yellow-zinc plating brings the top side of these carbs to life. NOTE: requires a $ 10.00 core charge, refundable upon the return of an undamaged, same-model, same-type screw.
$ 11.95 + $ 10.00 refundable core charge

HCP17726RP OEM re-plated carb hat choke cable bracket CLAMP SCREW, mounts the choke cable clamp to the choke cable bracket on all XJ650 Turbo, all water-cooled XJ700-X and XJ750-X models, all XJ900 (BS35 and BS36 series carbs), and all XJ1100 (BS34 carbs) models. Beautiful yellow-zinc plating brings the top side of these carbs to life. NOTE: requires a $ 10.00 core charge, refundable upon the return of an undamaged, same-model, same-type screw.
$ 11.95 + $ 10.00 refundable core charge




HCP5490RP OEM re-plated carb hat THROTTLE CABLE BRACKET, mounted on the #2 hat inner position. Beautiful yellow-zinc plating brings the top side of these carbs to life. Fits all BS28-series carbs as used on all XJ550 models. NOTE: requires a $ 25.00 core charge, refundable upon the return of an undamaged, same-model, same-type bracket.
$ 29.95 + $ 25.00 refundable core charge


HCP10433RP OEM re-plated carb hat THROTTLE CABLE BRACKET, mounted on the #3 hat inner position. Beautiful silver-zinc plating brings the top side of these carbs to life. Fits all BS30-series carbs as used on all XJ650 Turbo models. NOTE: requires a $ 25.00 core charge, refundable upon the return of an undamaged, same-model, same-type bracket.
$ 29.95 + $ 25.00 refundable core charge

HCP7411RP OEM re-plated carb hat FUEL PRESSURE REGULATOR BRACKET, mounts to the HCP10433RP throttle cable bracket listed above. Beautiful silver-zinc plating brings the top side of these carbs to life. Fits all BS30-series carbs as used on all XJ650 Turbo models. NOTE: requires a $ 25.00 core charge, refundable upon the return of an undamaged, same-model, same-type bracket.
$ 39.95 + $ 25.00 refundable core charge


HCP17731RP OEM re-plated carb hat THROTTLE CABLE BRACKET, mounted on the #3 hat inner position. Beautiful yellow-zinc plating brings the top side of these carbs to life. Fits all BS33-series carbs as used on all water-cooled XJ700-X and XJ750-X models. NOTE: requires a $ 25.00 core charge, refundable upon the return of an undamaged, same-model, same-type bracket.
$ 29.95 + $ 25.00 refundable core charge

HCP17732RP OEM re-plated carb hat THROTTLE CABLE BRACKET, mounted on the #3 hat inner position. Beautiful yellow-zinc plating brings the top side of these carbs to life. Fits all XJ900 models using the BS35- or BS36-series carbs and all XJ1100 models using the BS34-series carbs. NOTE: requires a $ 25.00 core charge, refundable upon the return of an undamaged, same-model, same-type bracket.
$ 39.95 + $ 25.00 refundable core charge




Mikuni Carb Hat Clips:

HCP14205 OEM carb body-pressure sensor VACUUM HOSE ROUTING CLIP, use one on the #1 carb hat, rear inner position, on all XJ650 Turbo models. This “shepherd’s crook” bright plated clips route the vacuum hose (in the “crook” part of the clip) away from obstacles, and lays flat (not upright) and captures the pressure sensor vacuum hose (which comes off the front brass fitting of the #2 carb) and routes it properly on its path. Perfectly replaces a commonly missing or rusted original. Use 1 per carb. Each.
$ discontinued

HCP21530 Aftermarket carb body-pressure sensor VACUUM HOSE ROUTING CLIP, use one on the #1 carb hat, rear inner position, on all XJ650 Turbo models. This “shepherd’s crook” bright plated clips route the vacuum hose (in the “crook” part of the clip) away from obstacles, and lays flat (not upright) and captures the pressure sensor vacuum hose (which comes off the front brass fitting of the #2 carb) and routes it properly on its path. Perfectly replaces a commonly missing or rusted original. Use 1 per carb. Each:
$ 9.95

HCP21529 Aftermarket Mikuni carb hat CLUTCH CABLE ROUTING CLIP, mounts on the #3 carb hat in the outer position, on all XJ1100 models. Heavy wire "shepherd's crook" shaped clip is secured by the carb screw, and captures and properly routes the clutch cable on its way to the clutch cover area. Perfectly replaces a commonly missing or rusted original. Use 1 per carb.
$ 9.95



Mikuni Carb Hat Fasteners:

ch3) OEM and aftermarket Mikuni carb hat-to-body (the “chrome “hat” technically known as a diaphram cover) MOUNTING SCREW. available in a variety of styles and finishes. All Mikuni model carbs originally used a panhead, phillips-drive hat mounting screw with a zinc-plated finish, and did not use a lockwasher. Use 4 per carb, 16 per rack. NOTE: XJ650 Turbo models also used one additional unit of this screw to secure the check valve to its mounting bracket. Also see our complete CARB HARDWARE KITS listed further below for the best deal and ease of ordering!


for all XJ550, 1984-85 FJ600, XJ650 Turbo, XJ700-X, XJ750-X, all XJ900RK, RL, N/FN, and F models, and XJ1100 models :

- These replacement panhead, phillips-drive screws have a natural finish and are made from alloy steel.

HCP60 OEM Mikuni carb hat MOUNTING SCREW, zinc-plated alloy-steel, panhead, phillips-drive, each:
$ 2.95

HCP60SET4 OEM Mikuni carb hat MOUNTING SCREW, set of 4:
$ 11.50

HCP60SET16 OEM Mikuni carb hat MOUNTING SCREW, set of 16:
$ 39.95



HCP910 Aftermarket Mikuni carb hat MOUNTING SCREW, zinc-plated alloy-steel, panhead, phillips-drive, each:
$ 1.50

HCP910SET4 Aftermarket Mikuni carb hat MOUNTING SCREW, set of 4:
$ 5.75

HCP910SET16 Aftermarket Mikuni carb hat MOUNTING SCREW, set of 16:
$ 17.95



- These replacement panhead, phillips-drive screws have a polished head and are made from an 18-8 stainless steel.

HCP62 Aftermarket Mikuni carb hat MOUNTING SCREW, 18-8 stainless-steel, panhead, phillips-drive, each:
$ 1.50

HCP62SET4 Aftermarket Mikuni carb hat MOUNTING SCREW, set of 4:
$ 4.50

HCP62SET16 Aftermarket Mikuni carb hat MOUNTING SCREW, set of 16:
$ 14.95



- These replacement panhead, phillips-drive screws have a black oxide-coated finish and are made from 18-8 stainless steel.

HCP2749 Aftermarket Mikuni carb hat MOUNTING SCREW, black-oxide coated stainless steel, panhead phillips-drive, each:
$ 1.50

HCP2749SET4 Aftermarket Mikuni carb hat MOUNTING SCREW, set of 4:
$ 5.50

HCP2749SET16 Aftermarket Mikuni carb hat MOUNTING SCREW, set of 16:
$ 18.00



- These replacement button-head, hex-drive screws have a polished head and are made from an 18-8 stainless steel.

HCP308 Aftermarket Mikuni carb hat MOUNTING SCREW, 18-8 stainless-steel, polished button head, hex-drive, each:
$ 1.25

HCP308SET4 Aftermarket Mikuni carb hat MOUNTING SCREW, set of 4:
$ 4.50

HCP308SET16 Aftermarket Mikuni carb hat MOUNTING SCREW, set of 16:
$ 14.00



- These replacement socket-head, hex-drive screws have a smooth polished head and are made from an 18-8 stainless steel.

HCP310 Aftermarket Mikuni carb hat MOUNTING SCREW, 18-8 stainless steel, smooth polished socket head, hex-drive, each:
$ 1.50

HCP310SET4 Aftermarket Mikuni carb hat MOUNTING SCREW, set of 4:
$ 5.25

HCP310SET16 Aftermarket Mikuni carb hat MOUNTING SCREW, set of 16:
$ 12.95



- These replacement socket-head, hex-drive screws have a black ribbed head and are made from an alloy steel.

HCP64 Aftermarket Mikuni carb hat MOUNTING SCREW, black oxide-coated steel, ribbed socket head, hex-drive, each:
$ 1.00

HCP64SET4 Aftermarket Mikuni carb hat MOUNTING SCREW, set of 4:
$ 3.50

HCP64SET16 Aftermarket Mikuni carb hat MOUNTING SCREW, set of 16:
$ 10.95




for all 1992-98 XJ600 Seca II models:

- These replacement panhead, phillips-drive screws have a natural finish and are made from alloy steel.

HCP322 OEM Mikuni carb hat short MOUNTING SCREW, zinc-plated alloy-steel, panhead, phillips-drive. Use 4 per hat, or 12 per entire rack, in all positions except the four center positions that hold the throttle cable bracket to the #2 and #3 carb hats. Each:
$ 2.95

HCP322SET4 OEM Mikuni carb hat short MOUNTING SCREWS, set of 4:
$ 9.75

HCP322SET12 OEM Mikuni carb hat short MOUNTING SCREWS, set of 12:
$ 24.95



HCP918 Aftermarket Mikuni carb hat short MOUNTING SCREW, zinc-plated alloy-steel, panhead, phillips-drive. Use 4 per hat, or 12 per entire rack, in all positions except the four center positions that hold the throttle cable bracket to the #2 and #3 carb hats. Each:
$ 1.00

HCP918SET4 Aftermarket Mikuni carb hat short MOUNTING SCREWS, set of 4:
$ 3.75

HCP918SET12 Aftermarket Mikuni carb hat short MOUNTING SCREWS, set of 12:
$ 6.95



HCP25913 Aftermarket Mikuni carb hat short MOUNTING SCREW, bright zinc-plated alloy steel, panhead, phillips drive, JIS small-head design as original. Use 4 per hat, or 12 per entire rack, in all positions except the four center positions that hold the throttle cable bracket to the #2 and #3 carb hats. Each:
$ 2.95

HCP25913SET4 Aftermarket Mikuni carb hat short MOUNTING SCREWS, set of 4:
$ 9.75

HCP25913SET12 Aftermarket Mikuni carb hat short MOUNTING SCREWS, set of 12:
$ 24.95




HCP3696 OEM Mikuni carb hat long MOUNTING SCREW, zinc-plated alloy-steel, panhead, phillips-drive. Use 4 per rack, in the positions that secure the throttle cable bracket on carbs #2 and #3. Each:
$ 2.50

HCP3696SET4 OEM Mikuni carb hat long MOUNTING SCREWS, set of 4:
$ 9.50



HCP5482 Aftermarket Mikuni carb hat long MOUNTING SCREW, zinc-plated alloy steel, panhead, phillips-drive. Use 4 per rack, in the positions that secure the throttle cable bracket on carbs #2 and #3. Each:
$ 1.00

HCP5482SET4 Aftermarket Mikuni carb hat long MOUNTING SCREWS, set of 4:
$ 3.50




- These replacement panhead, phillips-drive screws have a polished head and are made from an 18-8 stainless steel.

HCP1355 Aftermarket Mikuni carb hat short MOUNTING SCREW, 18-8 stainless-steel, panhead, phillips-drive. Use 4 per hat, or 12 per entire rack, in all positions except the four center positions that hold the throttle cable bracket to the #2 and #3 carb hats. Each:
$ 1.25

HCP1355SET4 Aftermarket Mikuni carb hat short MOUNTING SCREWS, set of 4:
$ 4.95

HCP1355SET12 Aftermarket Mikuni carb hat short MOUNTING SCREWS, set of 12:
$ 12.95



HCP21356 Aftermarket Mikuni carb hat long MOUNTING SCREW, 18-8 stainless steel, panhead, phillips-drive.. Use 4 per rack, in the positions that secure the throttle cable bracket on carbs #2 and #3. Each:
$ 1.50

HCP21356SET4 Aftermarket Mikuni carb hat long MOUNTING SCREWS, set of 4:
$ 4.95



- These replacement button-head, hex-drive screws have a polished head and are made from an 18-8 stainless steel.

HCP332 Aftermarket Mikuni carb hat short MOUNTING SCREW, 18-8 stainless-steel, polished button head, hex-drive. Use 4 per hat, or 12 per entire rack, in all positions except the four center positions that hold the throttle cable bracket to the #2 and #3 carb hats. Each:
$ 1.50

HCP332SET4 Aftermarket Mikuni carb hat short MOUNTING SCREWS, set of 4:
$ 5.25

HCP332SET12 Aftermarket Mikuni carb hat short MOUNTING SCREWS, set of 12:
$ 10.95



HCP5485 Aftermarket Mikuni carb hat long MOUNTING SCREW, 18-8 stainless-steel, polished button head, hex-drive. Use 4 per rack, in the positions that secure the throttle cable bracket on carbs #2 and #3. Each:
$ 1.50

HCP5485SET4 Aftermarket Mikuni carb hat long MOUNTING SCREWS, set of 4:
$ 4.95




- These replacement socket-head, hex-drive screws have a smooth polished head and are made from an 18-8 stainless steel.

HCP329 Aftermarket Mikuni carb hat short MOUNTING SCREW, 18-8 stainless steel, smooth polished socket head, hex-drive. Use 4 per hat, or 12 per entire rack, in all positions except the four center positions that hold the throttle cable bracket to the #2 and #3 carb hats. Each:
$ 1.25

HCP329SET4 Aftermarket Mikuni carb hat short MOUNTING SCREWS, set of 16:
$ 4.75

HCP329SET12 Aftermarket Mikuni carb hat short MOUNTING SCREWS, set of 12:
$ 10.75



HCP5483 Aftermarket Mikuni carb hat long MOUNTING SCREW, 18-8 stainless steel, smooth polished socket head, hex-drive. Use 4 per rack, in the positions that secure the throttle cable bracket on carbs #2 and #3. Each:
$ 1.50

HCP5483SET4 Aftermarket Mikuni carb hat long MOUNTING SCREWS, set of 4:
$ 5.25




- These replacement socket-head, hex-drive screws have a ribbed head with a black oxide-coated finish and are made from alloy steel.

HCP339 Aftermarket Mikuni carb hat short MOUNTING SCREW, black oxide-coated steel, ribbed socket head, hex-drive. Use 4 per hat, or 12 per entire rack, in all positions except the four center positions that hold the throttle cable bracket to the #2 and #3 carb hats. Each:
$ 1.20

HCP339SET4 Aftermarket Mikuni carb hat short MOUNTING SCREWS , set of 4:
$ 4.50

HCP339SET12 Aftermarket Mikuni carb hat short MOUNTING SCREWS , set of 12:
$ 10.50



HCP5484 Aftermarket Mikuni carb hat long MOUNTING SCREW, black oxide-coated steel, ribbed socket head, hex-drive. Use 4 per rack, in the positions that secure the throttle cable bracket on carbs #2 and #3. Each:
$ 1.50

HCP5484SET4 Aftermarket Mikuni carb hat long MOUNTING SCREWS, set of 4:
$ 4.95




HCP60 OEM Mikuni throttle cable bracket mounting SCREW, mounts in the center of the throttle cable bracket and retains the “z-clamp” to the aluminum bracket, use 1 per rack on all 1992-93 XJ600 Seca II models. A separate lockwasher (listed below) is also used with this screw. Panhead, phillips-drive, zinc-plated alloy steel.
$ 2.95

HCP22772 OEM Mikuni throttle cable bracket mounting SCREW, mounts in the center of the throttle cable bracket and retains the “z-clamp” to the aluminum bracket, use 1 per rack on all 1994 XJ600 Seca II models. A separate lockwasher (listed below) is also used with this screw. Panhead, phillips-drive, zinc-plated alloy steel.
$ 3.95

HCP9180 OEM Mikuni throttle cable bracket mounting SCREW, mounts in the center of the throttle cable bracket and retains the “z-clamp” to the aluminum bracket, use 1 per rack on all 1995-97 XJ600 Seca II models. A separate lockwasher (listed below) is also used with this screw. Panhead, phillips-drive, phosphate-plated alloy steel.
$ 1.95

HCP22771 OEM Mikuni throttle cable bracket mounting SCREW, mounts in the center of the throttle cable bracket and retains the “z-clamp” to the aluminum bracket, use 1 per rack on all 1998 XJ600 Seca II models. A separate lockwasher (listed below) is also used with this screw. Panhead, phillips-drive, zinc-plated alloy steel.
$ 1.95


HCP21368 Aftermarket Mikuni throttle cable bracket mounting SCREW, mounts in the center of the throttle cable bracket and retains the “z-clamp” to the aluminum bracket, use 1 per rack on all 1992-98 XJ600 Seca II models. A separate lockwasher (listed below) is also used with this screw. Panhead, phillips-drive, zinc-plated alloy steel.
$ 1.00

HCP5889 Aftermarket Mikuni throttle cable bracket mounting SCREW, mounts in the center of the throttle cable bracket and retains the “z-clamp” to the aluminum bracket, use 1 per rack on all 1992-98 XJ600 Seca II models. A separate lockwasher (listed below) is also used with this screw. Panhead, phillips-drive, bright 18-8 stainless steel.
$ 1.25

HCP21369 Aftermarket Mikuni throttle cable bracket mounting SCREW, mounts in the center of the throttle cable bracket and retains the “z-clamp” to the aluminum bracket, use 1 per rack on all 1992-98 XJ600 Seca II models. A separate lockwasher (listed below) is also used with this screw. Panhead, phillips-drive, bacl-oxide coated 18-8 stainless steel.
$ 1.95

HCP21372 Aftermarket Mikuni throttle cable bracket mounting SCREW, mounts in the center of the throttle cable bracket and retains the “z-clamp” to the aluminum bracket, use 1 per rack on all 1992-98 XJ600 Seca II models. A separate lockwasher (listed below) is also used with this screw. Polished 18-8 stainless steel, button head, hex-drive style.
$ 1.25

HCP21370 Aftermarket Mikuni throttle cable bracket mounting SCREW, mounts in the center of the throttle cable bracket and retains the “z-clamp” to the aluminum bracket, use 1 per rack on all 1992-98 XJ600 Seca II models. A separate lockwasher (listed below) is also used with this screw. Bright 18-8 stainless steel, socket head, hex-drive style.
$ 1.00

HCP21371 Aftermarket Mikuni throttle cable bracket mounting SCREW, mounts in the center of the throttle cable bracket and retains the “z-clamp” to the aluminum bracket, use 1 per rack on all 1992-98 XJ600 Seca II models. A separate lockwasher (listed below) is also used with this screw. Black-oxide coated 18-8 stainless steel, socket head, hex-drive style.
$ 1.00



HCP55 OEM Mikuni carb throttle cable clamp bracket screw LOCK WASHER, zinc-plated alloy steel. For use on all 1992-98 XJ600 Seca II models only, use 1 per screw, each:
$ 1.95

HCP913 Aftermarket Mikuni carb throttle cable clamp bracket screw LOCK WASHER, zinc-plated alloy steel. For use on all 1992-98 XJ600 Seca II models only, use 1 per screw, each:
$ 1.00

HCP57 Aftermarket Mikuni carb throttle cable clamp bracket screw LOCK WASHER, 18-8 stainless steel. For use on all 1992-98 XJ600 Seca II models only, use 1 per screw, each:
$ 1.00

HCP59 Aftermarket Mikuni carb throttle cable clamp bracket screw LOCK WASHER, black-oxide coated alloy steel. For use on all 1992-98 XJ600 Seca II models only, use 1 per screw, each.
$ 1.00



XJ650 Turbo Additional Hat Hardware:

HCP1467 OEM fuel pressure regulator and check valve mounting bracket-to-carb hat bracket SCREW. On the inner side of the #3 carb hat, XJ650 Turbo models use a special bracket to hold both the fuel pressure regulator and the check valve. This screw attaches that pressure regulator/check valve bracket to the accelerator cable bracket. Use 2 per carb; order the HCP315 lockwashers separately. Each:
$ 3.50

HCP2746 Aftermarket fuel pressure regulator and check valve mounting bracket-to-carb hat bracket SCREW, zinc-plated alloy steel, panhead, phillips-drive. On the inner side of the #3 carb hat, XJ650 Turbo models use a special bracket to hold both the fuel pressure regulator and the check valve. This screw attaches that pressure regulator/check valve bracket to the accelerator cable bracket. Use 2 per carb; order the HCP916 lockwashers separately. Each:
$ 2.95

HCP2747 Aftermarket fuel pressure regulator and check valve mounting bracket-to-carb hat bracket SCREW, 18-8 stainless steel, panhead, phillips-drive. On the inner side of the #3 carb hat, XJ650 Turbo models use a special bracket to hold both the fuel pressure regulator and the check valve. This screw attaches that pressure regulator/check valve bracket to the accelerator cable bracket. Use 2 per carb; order the HCP319 lockwashers separately. Each.
$ 3.95

HCP21431 Aftermarket fuel pressure regulator and check valve mounting bracket-to-carb hat bracket SCREW, 18-8 stainless steel, polished finish, button head, hex-drive. On the inner side of the #3 carb hat, XJ650 Turbo models use a special bracket to hold both the fuel pressure regulator and the check valve. This screw attaches that pressure regulator/check valve bracket to the accelerator cable bracket. Use 2 per carb; order the HCP319 lockwashers separately. Each.
$ 1.95

HCP21430 Aftermarket fuel pressure regulator and check valve mounting bracket-to-carb hat bracket SCREW, 18-8 stainless steel, socket head, smooth polished head, hex-drive. On the inner side of the #3 carb hat, XJ650 Turbo models use a special bracket to hold both the fuel pressure regulator and the check valve. This screw attaches that pressure regulator/check valve bracket to the accelerator cable bracket. Use 2 per carb; order the HCP319 lockwashers separately. Each.
$ 1.95

HCP21432 Aftermarket fuel pressure regulator and check valve mounting bracket-to-carb hat bracket SCREW, black-oxide coated alloy steel, socket head, hex-drive. On the inner side of the #3 carb hat, XJ650 Turbo models use a special bracket to hold both the fuel pressure regulator and the check valve. This screw attaches that pressure regulator/check valve bracket to the accelerator cable bracket. Use 2 per carb; order the HCP321 lockwashers separately. Each.
$ 1.50



HCP315 OEM fuel pressure regulator and check valve mounting bracket-to-carb hat bracket LOCK WASHER, use with any of the screws listed above on all XJ650 Turbo models, each:
$ 2.95

HCP916 Aftermarket zinc-plated alloy steel with a natural finish, fuel pressure regulator and check valve mounting bracket-to-carb hat bracket LOCK WASHER, use with any of the screws listed above on all XJ650 Turbo models, each:
$ 1.25

HCP319 Aftermarket 18-8 stainless steel fuel pressure regulator and check valve mounting bracket-to-carb hat bracket LOCK WASHER, use with any of the screws listed above on all XJ650 Turbo models, each:
$ 1.50

HCP321 Aftermarket black oxide-coated alloy steel fuel pressure regulator and check valve mounting bracket-to-carb hat bracket LOCK WASHER, use with any of the screws listed above on all XJ650 Turbo models, each:
$ 1.75



HCP5386 OEM fuel pressure regulator and check valve mounting bracket NUT. On the inner side of the #3 carb hat, XJ650 Turbo models use a special bracket to hold both the fuel pressure regulator and the check valve. This nut secures the pressure regulator to its bracket (which in turn is screwed into to the accelerator cable bracket). Use 1 per carb; order the HCP10422 plate washer separately. Each:
$ 3.95

HCP21407 Aftermarket fuel pressure regulator and check valve mounting bracket NUT, zinc-plated alloy steel. On the inner side of the #3 carb hat, XJ650 Turbo models use a special bracket to hold both the fuel pressure regulator and the check valve. This nut secures the pressure regulator to its bracket (which in turn is screwed into to the accelerator cable bracket). Use 1 per carb; order the HCP21409 plate washer separately. Each:
$ 1.95

HCP21408 Aftermarket fuel pressure regulator and check valve mounting bracket NUT, 18-8 stainless steel. On the inner side of the #3 carb hat, XJ650 Turbo models use a special bracket to hold both the fuel pressure regulator and the check valve. This nut secures the pressure regulator to its bracket (which in turn is screwed into to the accelerator cable bracket). Use 1 per carb; order the HCP21409 plate washer separately. Each:
$ 2.95


HCP10422 OEM fuel pressure regulator and check valve mounting bracket FLAT WASHER. On the inner side of the #3 carb hat, XJ650 Turbo models use a special bracket to hold both the fuel pressure regulator and the check valve. This washer is used with the HCP5386, HCP21407, or HCP21408 mounting nut. Use 1 per carb. Each:
$ 4.50

HCP21409 Aftermarket fuel pressure regulator and check valve mounting bracket FLAT WASHER, 18-8 stainless steel. On the inner side of the #3 carb hat, XJ650 Turbo models use a special bracket to hold both the fuel pressure regulator and the check valve. This washer is used with the HCP5386, HCP21407, or HCP21408 mounting nut. Use 1 per carb. Each:
$ 2.95

HCP21410 Aftermarket fuel pressure regulator and check valve mounting bracket FLAT WASHER, black-oxide coated alloy steel. On the inner side of the #3 carb hat, XJ650 Turbo models use a special bracket to hold both the fuel pressure regulator and the check valve. This washer is used with the HCP5386, HCP21407, or HCP21408 mounting nut. Use 1 per carb. Each:
$ 2.95




MIKUNI STARTER / ENRICHMENT / CHOKE CIRCUIT HARDWARE:

Mikuni Carb Starter - Enrichment (“Choke”) Circuit Shaft, Brackets, and Springs:

Our re-plated Mikuni carb starter - enrichment (“choke”) circuit individual SHAFTS AND BRACKETS allow you to re-create the original look and beauty of these carb racks. These parts are available re-plated to their correct original silver- or yellow-zinc appearance. If you need to replace any missing hardware, or just want to create a show-winning look, then you should start your shopping list here! NOTE: all starter hardware pieces are re-plated, used parts, and as such, may have minor cosmetic flaws (tooling marks, fastener marks, etc.). Most such marks will not be visible once installed. Also, all re-plated items require a refundable core charge which will be credited back to you once you return a same-model, same-type of item(s) as you purchased. Since these are re-plated used parts, we do require an exchange for your original parts so we can have a steady supply of parts to be processed and re-plated for future sales.


HCP5156RP OEM re-plated carb starter - enrichment (“choke”) circuit ACTUATING SHAFT, long round shaft that carries the choke plunger lifter “finger” brackets. Beautiful silver-zinc plating brings the top side of these carbs to life. Fits all BS28-series carbs as used on all XJ550 Maxim, Seca, and XJ550 Euro models. NOTE: requires a $ 20.00 core charge, refundable upon the return of an undamaged, same-model, same-type shaft.
$ 29.95 + $ 20.00 refundable core charge

HCP14203RP OEM re-plated carb starter - enrichment (“choke”) circuit ACTUATING SHAFT, long round shaft that carries the choke plunger lifter “finger” brackets. Beautiful silver-zinc plating brings the top side of these carbs to life. Fits all BS30-series carbs as used on all XJ650 Turbo models. NOTE: requires a $ 20.00 core charge, refundable upon the return of an undamaged, same-model, same-type shaft.
$ 39.95 + $ 20.00 refundable core charge

HCP17755RP OEM re-plated carb starter - enrichment (“choke”) circuit ACTUATING SHAFT, long round shaft that carries the choke plunger lifter “finger” brackets. Beautiful silver-zinc plating brings the top side of these carbs to life. Fits all BS33-series carbs as used on all water-cooled XJ700-X and XJ750-X models. NOTE: requires a $ 20.00 core charge, refundable upon the return of an undamaged, same-model, same-type shaft.
$ 39.95 + $ 20.00 refundable core charge

HCP17756RP OEM re-plated carb starter - enrichment (“choke”) circuit ACTUATING SHAFT, long round shaft that carries the choke plunger lifter “finger” brackets. Beautiful silver-zinc plating brings the top side of these carbs to life. Fits all BS35- and BS36-series carbs as used on XJ900 models and BS34 carbs used on XJ1100 models. NOTE: requires a $ 20.00 core charge, refundable upon the return of an undamaged, same-model, same-type shaft.
$ 39.95 + $ 20.00 refundable core charge



HCP5163RP-SET4 OEM re-plated carb starter - enrichment (“choke”) circuit PLUNGER LIFTER BRACKETS, set of 4 of the choke plunger-lifter “finger” brackets. Beautiful silver-zinc plating brings the top side of these carbs to life. Fits all BS28-series carbs as used on all XJ550 Maxim, Seca, and XJ550 Euro models. NOTE: requires a $ 20.00 core charge, refundable upon the return of an undamaged, same-model, same-type set of lifter brackets.
$ 29.95 + $ 20.00 refundable core charge


HCP14200RP OEM re-plated carb starter - enrichment (“choke”) circuit PLUNGER LIFTER BRACKET, these are the choke plunger-lifter “finger” brackets used on the #1 and #2 carbs. Beautiful silver-zinc plating brings the top side of these carbs to life. Fits all BS30-series carbs as used on all XJ650 Turbo, and on BS33-series carbs used on all water-cooled XJ700-X and XJ750-X models. Each. NOTE: requires a $ 15.00 core charge, refundable upon the return of an undamaged, same-model, same-type set of lifter bracket.
$ 15.95 + $ 15.00 refundable core charge

HCP14201RP OEM re-plated carb starter - enrichment (“choke”) circuit PLUNGER LIFTER BRACKET, this is the choke plunger-lifter “finger” brackets used on the #3 carb. Beautiful silver-zinc plating brings the top side of these carbs to life. Fits all BS30-series carbs as used on all XJ650 Turbo models. NOTE: requires a $ 15.00 core charge, refundable upon the return of an undamaged, same-model, same-type set of lifter bracket.
$ 19.95 + $ 15.00 refundable core charge

HCP16791RP OEM re-plated carb starter - enrichment (“choke”) circuit PLUNGER LIFTER BRACKET, this is the choke plunger-lifter “finger” brackets used on the #3 carb. Beautiful silver-zinc plating brings the top side of these carbs to life. Fits all BS33-series carbs used on all water-cooled XJ700-X and XJ750-X models. NOTE: requires a $ 15.00 core charge, refundable upon the return of an undamaged, same-model, same-type set of lifter bracket.
$ 19.95 + $ 15.00 refundable core charge

HCP14202RP OEM re-plated carb starter - enrichment (“choke”) circuit PLUNGER LIFTER BRACKET, this is the choke plunger-lifter “finger” brackets used on the #4 carb. Beautiful silver-zinc plating brings the top side of these carbs to life. Fits all BS30-series carbs as used on all XJ650 Turbo, and on BS33-series carbs used on all water-cooled XJ700-X and XJ750-X models. NOTE: requires a $ 15.00 core charge, refundable upon the return of an undamaged, same-model, same-type set of lifter bracket.
$ 15.95 + $ 15.00 refundable core charge


HCP16792RP-SET4 OEM re-plated carb starter - enrichment (“choke”) circuit PLUNGER LIFTER BRACKETS, set of 4 of the choke plunger-lifter “finger” brackets. Beautiful silver-zinc plating brings the top side of these carbs to life. Fits all BS35- and BS36-series carbs as used on XJ900 models and BS34 carbs used on XJ1100 models. NOTE: requires a $ 30.00 core charge, refundable upon the return of an undamaged, same-model, same-type set of lifter brackets.
$ 39.95 + $ 30.00 refundable core charge

HCP16794RP OEM re-plated carb starter - enrichment (“choke”) circuit SHAFT ACTUATOR BRACKET, this is the choke shaft actuator bracket used at the outer end of that shaft (next to the #4 carb). Beautiful silver-zinc plating brings the top side of these carbs to life. Fits all BS35- and BS36-series carbs as used on XJ900 models and BS34 carbs used on XJ1100 models. NOTE: requires a $ 15.00 core charge, refundable upon the return of an undamaged, same-model, same-type set of bracket.
$ 19.95 + $ 15.00 refundable core charge



HCP5157RP OEM Mikuni starter/choke shaft RETURN SPRING, fits all XJ550 models. Beautiful bright silver-zinc plating brings the top side of these carbs to life. NOTE: requires a $ 15.00 core charge, refundable upon the return of an undamaged, same-model, same-type spring.
$ 19.95 + $ 15.00 refundable core charge

HCP22374 OEM Mikuni starter/choke shaft pull handle RETURN SPRING, fits all 1992-98 XJ600 Seca II models. Each:
$ 11.95



Mikuni Carb Starter - Enrichment Circuit Fasteners:

xx4) Aftermarket Mikuni Starter-Enrichment Circuit Arm-to-Shaft SET SCREW. These replacement screws are used to retain the starter lever "finger" bracket to the starter circuit shaft. Use 1 per carb, 4 of these screws per rack on all XJ550, 1984-85 FJ600, 1992-98 XJ600 Seca II, XJ650 Turbo, XJ700-X, XJ750-X, and XJ900RK models. XJ1100 and XS1100 models use a total of 5 screws per rack

NOTE: originally, these screws were configured as follows:

XJ550 all models used a panhead, phillips drive cone (pointed) tip set screw. This style screw is not currently available, and the HCP21375, HCP299, or HCP300 screws listed below are the recommended replacements.

XJ650 Turbo, XJ900, XJ1100, and XS1100 models used a straight slot, cone (pointed) tip set screw. This style screw is the HCP21375 or HCP21376, and similar to the HCP299 and HCP300 screws listed below, with the main difference being that while the original screws used a straight blade slot, the HCP299 and HCP300 screws below employ a hex-drive.

1984-85 FJ600, 1992-98 XJ600 Seca II, XJ700-X, and XJ750-X models used a panhead, phillips drive dog-point (blunt tip) set screw. This style screw is not currently available, although the HCP6828 screw below is very similar, with the main difference being that original screws used a phillips-drive head, while the replacement screws below employ a hex-drive.

ALL models may use the HCP299, HCP300, HCP21375, HCP21376, or HCP6828 hex-drive set screws as a suitable replacement.



HCP21376 Aftermarket Mikuni enrichment circuit lever arm-to-shaft SET SCREW, original straight-slot design, zinc-plated alloy steel. Slightly shorter than stock. Correct style for all XJ650 Turbo, XJ900, XJ1100, and XS1100 carbs, but will serve as suitable replacements for all XJ550, 1984-85 FJ600, 1992-98 XJ600 Seca II, XJ700-X, and XJ750-X models. Each:
$ 1.95

HCP21376SET4 Aftermarket Mikuni enrichment circuit lever arm-to-shaft SET SCREWS, set of 4:
$ 7.50

HCP21376SET5 Aftermarket Mikuni enrichment circuit lever arm-to-shaft SET SCREWS, set of 5:
$ 8.95



HCP21375 Aftermarket Mikuni enrichment circuit lever arm-to-shaft SET SCREW, original straight-slot design, 18-8 stainless steel. Slightly shorter than stock. Correct style for all XJ650 Turbo, XJ900, XJ1100, and XS1100 carbs, but will serve as suitable replacements for all XJ550, 1984-85 FJ600, 1992-98 XJ600 Seca II, XJ700-X, and XJ750-X models. Each:
$ 1.95

HCP21375SET4 Aftermarket Mikuni enrichment circuit lever arm-to-shaft SET SCREWS, set of 4:
$ 7.50

HCP21375SET5 Aftermarket Mikuni enrichment circuit lever arm-to-shaft SET SCREWS, set of 5:
$ 8.95



HCP299 Aftermarket Mikuni enrichment circuit lever arm-to-shaft cone-point SET SCREW, hex-key drive, black oxide coated alloy steel, slightly longer than stock. Correct style for all XJ650 Turbo, XJ900, XJ1100, and XS1100 carbs, but will serve as suitable replacements for all XJ550, 1984-85 FJ600, 1992-98 XJ600 Seca II, XJ700-X, and XJ750-X models. Each:
$ 1.95

HCP299SET4 Aftermarket Mikuni enrichment circuit lever arm-to-shaft SET SCREWS, set of 4:
$ 6.95

HCP299SET5 Aftermarket Mikuni enrichment circuit lever arm-to-shaft SET SCREWS, set of 5:
$ 7.95



HCP300 Aftermarket Mikuni enrichment circuit lever arm-to-shaft cone-point SET SCREW, hex-key drive, 18-8 stainless steel, slightly longer than stock. Correct style for all XJ650 Turbo, XJ900, XJ1100, and XS1100 carbs, but will serve as suitable replacements for all XJ550, 1984-85 FJ600, 1992-98 XJ600 Seca II, XJ700-X, and XJ750-X models. Each:
$ 1.95

HCP300SET4 Aftermarket Mikuni enrichment circuit lever arm-to-shaft SET SCREWS, set of 4:
$ 6.95

HCP300SET5 Aftermarket Mikuni enrichment circuit lever arm-to-shaft SET SCREWS, set of 5:
$ 7.95



HCP6828 Aftermarket Mikuni enrichment circuit lever arm-to-shaft blunt point SET SCREW, hex-key drive, 18-8 stainless steel, slightly longer than stock. Correct style for all 1984-85 FJ600, XJ700-X, and XJ750-X models, but will serve as suitable replacements for all XJ550, 1992-98 XJ600 Seca II, XJ650 Turbo, XJ900, XJ1100, and XS1100 models. Each:
$ 2.95

HCP6828SET4 Aftermarket Mikuni enrichment circuit lever arm-to-shaft SET SCREWS, set of 4:
$ 10.95

HCP6828SET5 Aftermarket Mikuni enrichment circuit lever arm-to-shaft SET SCREWS, set of 5:
$ 12.95



HCP4561 OEM Mikuni carb choke cable clamp bracket MOUNTING SCREW, alloy steel, panhead, phillips-drive. Secures the choke cable retaining clamp to the bracket located on the #1 carb hat. For use on all XJ550 models only, 1 per bike. Each.
$ 2.95

HCP911 Aftermarket Mikuni carb choke cable clamp bracket MOUNTING SCREW, zinc-plated alloy steel, panhead, phillips-drive. Secures the choke cable retaining clamp to the bracket located on the #1 carb hat. For use on all XJ550 models only, 1 per bike. Each:
$ 1.95

HCP1362 Aftermarket Mikuni carb choke cable clamp bracket MOUNTING SCREW, yellow cad-plated alloy steel, panhead, phillips-drive, with an integral lockwasher. Secures the choke cable retaining clamp to the bracket located on the #1 carb hat. For use on all XJ550 models only, 1 per bike. Each:
$ 1.95

HCP307 Aftermarket Mikuni carb choke cable clamp bracket MOUNTING SCREW, 18-8 stainless steel, panhead, phillips-drive. Secures the choke cable retaining clamp to the bracket located on the #1 carb hat. For use on all XJ550 models only, 1 per bike. Each:
$ 1.50

HCP24040 Aftermarket Mikuni carb choke cable clamp bracket MOUNTING SCREW, alloy steel, panhead, phillips-drive. Secures the choke cable retaining clamp to the bracket located on the #1 carb hat. For use on all XJ550 models only, 1 per bike. Each.
$ 1.95

HCP309 Aftermarket Mikuni carb choke cable clamp bracket MOUNTING SCREW, 18-8 stainless steel, button-head, hex-drive style. Secures the choke cable retaining clamp to the bracket located on the #1 carb hat. For use on all XJ550 models only, 1 per bike. Each:
$ 1.00

HCP311 Aftermarket Mikuni carb choke cable clamp bracket MOUNTING SCREW, 18-8 stainless steel, socket-head, hex-drive style. Secures the choke cable retaining clamp to the bracket located on the #1 carb hat. For use on all XJ550 models only, 1 per bike. Each:
$ 1.00

HCP312 Aftermarket Mikuni carb choke cable clamp bracket MOUNTING SCREW, black oxide-coated steel, socket-head, hex-drive style. Secures the choke cable retaining clamp to the bracket located on the #1 carb hat. For use on all XJ550 models only, 1 per bike. Each:
$ 1.50



HCP55 OEM Mikuni carb choke cable clamp bracket screw LOCK WASHER, zinc-plated alloy steel. For use on all XJ550 models only, Use 1 per bike, each:
$ 1.95

HCP913 Aftermarket Mikuni carb choke cable clamp bracket screw LOCK WASHER, zinc-plated alloy steel. For use on all XJ550 models only, 1 per bike, each.
$ 1.00

HCP57 Aftermarket Mikuni carb choke cable clamp bracket screw LOCK WASHER, 18-8 stainless steel. For use on all XJ550 models only, 1 per bike, each.
$ 1.00

HCP59 Aftermarket Mikuni carb choke cable clamp bracket screw LOCK WASHER, black oxide coated alloy steel. For use on all XJ550 models only, 1 per bike, each.
$ 1.00



MIKUNI UPPER RACK BRACKET HARDWARE:

Mikuni Carb Upper Rack Brackets:

Our re-plated Mikuni carb upper rack individual BRACKETS allow you to re-create the original look and beauty of these carb racks. These parts are available re-plated to their correct original silver- or yellow-zinc appearance. If you need to replace any missing hardware, or just want to create a show-winning look, then you should start your shopping list here! NOTE: all rack brackets are re-plated, used parts, and as such, may have minor cosmetic flaws (tooling marks, fastener marks, etc.). Most such marks will not be visible once installed. Also, all re-plated items require a refundable core charge which will be credited back to you once you return a same-model, same-type of item(s) as you purchased. Since these are re-plated used parts, we do require an exchange for your original parts so we can have a steady supply of parts to be processed and re-plated for future sales.


HCP5480RP OEM re-plated carb upper rack lateral BRACKET, long L-shaped bracket carries and aligns all four carb bodies. Beautiful silver-zinc plating brings the top side of these carbs to life. Fits all BS28-series carbs as used on XJ550 Maxim, Seca, and XJ550 Euro models. NOTE: requires a $ 25.00 core charge, refundable upon the return of an undamaged, same-model, same-type bracket.
$ 29.95 + $ 25.00 refundable core charge

HCP14255RP OEM re-plated carb upper rack lateral BRACKET, long L-shaped bracket carries and aligns all four carb bodies. Beautiful silver-zinc plating brings the top side of these carbs to life. Fits all BS30-series carbs as used on XJ650 Turbo models. NOTE: requires a $ 25.00 core charge, refundable upon the return of an undamaged, same-model, same-type bracket.
$ 39.95 + $ 25.00 refundable core charge

HCP16337RP OEM re-plated carb upper rack lateral BRACKET, long L-shaped bracket carries and aligns all four carb bodies. Beautiful silver-zinc plating brings the top side of these carbs to life. Fits all BS33-series carbs as used on all water-cooled XJ700-X and XJ750-X models. NOTE: requires a $ 25.00 core charge, refundable upon the return of an undamaged, same-model, same-type bracket.
$ 39.95 + $ 25.00 refundable core charge

HCP14413RP OEM re-plated carb upper rack lateral bracket EXTENSION, short L-shaped bracket attaches to the ends of the HCP14633 bracket above. Beautiful silver-zinc plating brings the top side of these carbs to life. Fits all BS33-series carbs as used on all water-cooled XJ700-X and XJ750-X models. Use 2 per carb rack. Each. NOTE: requires a $ 25.00 core charge, refundable upon the return of an undamaged, same-model, same-type bracket.
$ 19.95 + $ 15.00 refundable core charge

HCP16338RP OEM re-plated carb upper rack lateral BRACKET, long L-shaped bracket carries and aligns all four carb bodies. Beautiful silver-zinc plating brings the top side of these carbs to life. Fits all BS28-series carbs as used on all water-cooled XJ900 (with BS35 and BS36 series carbs) XJ1100 (BS34) models. NOTE: requires a $ 25.00 core charge, refundable upon the return of an undamaged, same-model, same-type bracket.
$ 39.95 + $ 25.00 refundable core charge



Mikuni Carb Upper Rack Bracket Clips:

k26) Mikuni upper rack bracket CLIPS AND BRACKETS.

HCP21527 Aftermarket Mikuni carb rack CLUTCH CABLE ROUTING CLIP, mounts on the upper rack bracket, #3 carb outer position, on all XJ650 Turbo models. Heavy wire "shepherd's crook" shaped clip is secured by the upper rack bracket screw, and captures and properly routes the clutch cable on its way to the clutch cover area. Perfectly replaces a commonly missing or rusted original. Use 1 per carb.
$ 8.95

HCP21528 Aftermarket Mikuni carb rack CLUTCH CABLE ROUTING CLIP, mounts on the upper rack bracket, #3 carb outer position, on all XJ900 models. Heavy wire "shepherd's crook" shaped clip is secured by the upper rack bracket screw, and captures and properly routes the clutch cable on its way to the clutch cover area. Perfectly replaces a commonly missing or rusted original. Use 1 per carb.
$ 9.95



Mikuni Carb Upper Rack Bracket Fasteners:

a7) OEM and aftermarket Mikuni carb upper rack bracket MOUNTING SCREWS[/b], available in a variety of styles and finishes. NOTE: originally, these screws were an alloy steel, panhead, phillips-drive fastener with a zinc-plated finish, and did not use a lock washer.

ALSO, these screws were originally installed (and should be re-installed) with a low-strength thread locking fluid applied.

Therefore, these screws may be VERY difficult to remove and it is highly recommended that you obtain the correct size JIS style screwdriver (or an impact driver) to remove them without stripping the slots.


For all XJ550, 1984-85 FJ600, XJ650 Turbo, XJ700-X, XJ750-X, XJ900RK, RL, F, N, and FN models, XJ1100, and XS1100 models:

- These panhead phillips-drive screws have a natural finish and are made from alloy steel:

HCP60 OEM Mikuni carb upper rack bracket short MOUNTING SCREW, zinc-plated alloy-steel, panhead, phillips-drive. All XJ550, 1984-85 FJ600, XJ650 Turbo, all XJ900RK, RL, N/FN, and F models, and XJ1100 models use 8 of these screws. and XJ700-X and XJ750-X use 6 of these screws (except in the end positions, which use the long screws. Each:
each:
$ 2.95

HCP60SET6 OEM Mikuni carb upper rack bracket short MOUNTING SCREWS, set of 6:
$ 16.95

HCP60SET8 OEM Mikuni carb upper rack bracket short MOUNTING SCREWS, set of 8:
$ 22.50



HCP2940 OEM Mikuni carb upper rack bracket long MOUNTING SCREW, end screws for XJ700-X and XJ750-X models only. These panhead, phillips-drive, alloy steel screws have a dark grey plated finish, and are approximately 2mm longer than stock, each:
$ 3.50

HCP2940SET2 OEM Mikuni carb upper rack bracket long MOUNTING SCREWS, set of 2:
$ 6.75



HCP9180 OEM Mikuni carb upper rack bracket MOUNTING SCREW, zinc-plated alloy-steel, panhead, phillips-drive, fits all 1980-81 XS1100 G/SG/H/SH models, use 8 per rack, each:
$ 1.95

HCP9180SET8 OEM Mikuni carb upper rack bracket MOUNTING SCREWS, set of 8:
$ 15.25


HCP168 OEM Mikuni carb upper rack bracket MOUNTING SCREW, zinc-plated alloy-steel, panhead, phillips-drive, fits all 1980-81 XS1100 LG/LH models, use 8 per rack, each:
$ 1.00

HCP168SET8 OEM Mikuni carb upper rack bracket MOUNTING SCREWS, set of 8:
$ 7.95




HCP910 Aftermarket Mikuni carb upper rack bracket short MOUNTING SCREW, zinc-plated alloy-steel, panhead, phillips-drive, fits all XJ550, 1984-85 FJ600, XJ650 Turbo, XJ700-X and XJ750-X (except in the end positions), all XJ900RK, RL, N/FN, and F models, XJ1100, and 1980-81 XS1100 LG/LH models, each:
$ 1.50

HCP910SET6 Aftermarket Mikuni carb upper rack bracket short MOUNTING SCREWS, set of 6:
$ 8.50

HCP910SET8 Aftermarket Mikuni carb upper rack bracket short MOUNTING SCREWS, set of 8:
$ 10.95



HCP2643 Aftermarket Mikuni carb upper rack bracket long MOUNTING SCREW, end screws for XJ700-X and XJ750-X models only, zinc-plated alloy-steel, panhead, phillips-drive, approximately 2mm longer than stock, panhead phillips drive. Use 4 per bowl, each:
$ 1.75

HCP2643SET2 Aftermarket Mikuni carb upper rack bracket long MOUNTING SCREWS, set of 2:
$ 3.25



HCP21368 Aftermarket Mikuni carb upper rack bracket MOUNTING SCREW, zinc-plated alloy-steel, panhead, phillips-drive, fits all 1980-81 XS1100 G/SG/H/SH models, each:
$ 1.00

HCP21368SET8 Aftermarket Mikuni carb upper rack bracket MOUNTING SCREWS, set of 8:
$ 7.95



- These replacement panhead phillips-drive screws have a polished finish and are made from 18-8 stainless steel:

HCP62 Aftermarket Mikuni carb upper rack bracket short MOUNTING SCREW, 18-8 stainless-steel, panhead, phillips-drive, fits all XJ550, 1984-85 FJ600, XJ650 Turbo, XJ700-X and XJ750-X (except in the end positions), all XJ900RK, RL, N/FN, and F models, XJ1100, and 1980-81 XS1100 LG/LH models, each:
$ 1.50

HCP62SET6 Aftermarket Mikuni carb upper rack bracket short MOUNTING SCREWS, set of 6:
$ 8.25

HCP62SET8 Aftermarket Mikuni carb upper rack bracket short MOUNTING SCREWS, set of 8:
$ 10.95



HCP302 Aftermarket Mikuni carb upper rack bracket long MOUNTING SCREW, end screws for XJ700-X and XJ750-X models only, 18-8 stainless-steel, panhead, phillips-drive, approximately 2mm longer than stock, each:
$ 1.50

HCP302SET2 Aftermarket Mikuni carb upper rack bracket long MOUNTING SCREWS, set of 2:
$ 2.75



HCP5889 Aftermarket Mikuni carb upper rack bracket MOUNTING SCREW, 18-8 stainless-steel, panhead, phillips-drive, fits all 1980-81 XS1100 G/SG/H/SH models, each:
$ 1.25

HCP5889SET8 Aftermarket Mikuni carb upper rack bracket MOUNTING SCREWS, set of 8:
$ 9.25



- These replacement button head hex-drive screws have a polished finish and are made from 18-8 stainless steel:

HCP308 Aftermarket Mikuni carb upper rack bracket short MOUNTING SCREW, 18-8 stainless-steel, polished button head, hex-drive, fits all XJ550, 1984-85 FJ600, XJ650 Turbo, XJ700-X and XJ750-X (except in the end positions), all XJ900RK, RL, N/FN, and F models, XJ1100, and 1980-81 XS1100 LG/LH models, each:
$ 1.25

HCP308SET6 Aftermarket Mikuni carb upper rack bracket short MOUNTING SCREWS, set of 6:
$ 6.50

HCP308SET8 Aftermarket Mikuni carb upper rack bracket short MOUNTING SCREWS, set of 8:
$ 7.25


HCP303 Aftermarket Mikuni carb upper rack bracket long MOUNTING SCREW, end screws for XJ700-X and XJ750-X models only, 18-8 stainless-steel, polished button head, hex-drive, approximately 2mm longer than stock, each:
$ 1.95

HCP303SET2 Aftermarket Mikuni carb upper rack bracket long MOUNTING SCREWS, set of 2:
$ 3.75



HCP21372 Aftermarket Mikuni carb upper rack bracket MOUNTING SCREW, 18-8 stainless-steel, polished button head, hex-drive, fits all 1980-81 XS1100 G/SG/H/SH models, each:
$ 1.25

HCP21372SET8 Aftermarket Mikuni carb upper rack bracket MOUNTING SCREWS, set of 8:
$ 9.25



- These replacement socket head hex-drive screws have a smooth, polished head and are made from 18-8 stainless steel:

HCP310 Aftermarket Mikuni carb upper rack bracket short MOUNTING SCREW, 18-8 stainless steel, smooth polished socket head, hex-drive, fits all XJ550, 1984-85 FJ600, XJ650 Turbo, XJ700-X and XJ750-X (except in the end positions), all XJ900RK, RL, N/FN, and F models, XJ1100, and 1980-81 XS1100 LG/LH models, each:
$ 1.50

HCP310SET6 Aftermarket Mikuni carb upper rack bracket short MOUNTING SCREWS, set of 6:
$ 5.95

HCP310SET8 Aftermarket Mikuni carb upper rack bracket short MOUNTING SCREWS, set of 8:
$ 6.95



HCP56 Aftermarket Mikuni carb upper rack bracket long MOUNTING SCREW, end screws for XJ700-X and XJ750-X models only, 18-8 stainless steel, smooth polished socket head, hex-drive, approximately 2mm longer than stock, each:
$ 1.95

HCP56SET2 Aftermarket Mikuni carb upper rack bracket long MOUNTING SCREWS, set of 2:
$ 3.75



HCP21370 Aftermarket Mikuni carb upper rack bracket MOUNTING SCREW, 18-8 stainless steel, smooth polished socket head, hex-drive, fits all 1980-81 XS1100 G/SG/H/SH models, each:
$ 1.00

HCP21370SET8 Aftermarket Mikuni carb upper rack bracket MOUNTING SCREWS, set of 8:
$ 7.95



- These replacement socket head, hex-drive screws have a black oxide-coated finish and are made from alloy steel:

HCP64 Aftermarket Mikuni carb upper rack bracket short MOUNTING SCREW, black oxide-coated steel, ribbed socket head, hex-drive, fits all XJ550, 1984-85 FJ600, XJ650 Turbo, XJ700-X and XJ750-X (except in the end positions), all XJ900RK, RL, N/FN, and F models, XJ1100, and 1980-81 XS1100 LG/LH models, each:
$ 1.00

HCP64SET6 Aftermarket Mikuni carb upper rack bracket short MOUNTING SCREWS, set of 6:
$ 4.75

HCP64SET8 Aftermarket Mikuni carb upper rack bracket short MOUNTING SCREWS, set of 8:
$ 6.95



HCP58 Aftermarket Mikuni carb upper rack bracket long MOUNTING SCREW, end screws for XJ700-X and XJ750-X models only, black oxide-coated steel, ribbed socket head, hex-drive, approximately 2mm longer than stock, each:
$ 1.50

HCP58SET2 Aftermarket Mikuni carb upper rack bracket long MOUNTING SCREWS, set of 2:
$ 2.75



HCP21371 Aftermarket Mikuni carb upper rack bracket MOUNTING SCREW, black oxide-coated steel, ribbed socket head, hex-drive, fits all 1980-81 XS1100 G/SG/H/SH models, each:
$ 1.00

HCP21371SET8 Aftermarket Mikuni carb upper rack bracket MOUNTING SCREWS, set of 8:
$ 7.95



For all 1992-98 XJ600 Seca II models:

- These replacement panhead phillips-drive screws have a natural finish and are made from alloy steel:

HCP60 OEM Mikuni carb upper rack bracket short MOUNTING SCREW, zinc-plated alloy-steel, panhead, phillips-drive. For all 1992-98 XJ600 Seca II models. The forward (front) brackets use 6 of these screws, and two of the long screws below; the rear upper bracket (joining carbs #2 and #3 together) uses 4 of these screws, each:
$ 2.95

HCP60SET6 OEM Mikuni carb upper rack bracket short MOUNTING SCREWS, set of 6:
$ 16.95

HCP60SET10 OEM Mikuni carb upper rack bracket short MOUNTING SCREWS, set of 10:
$ 22.50


HCP304 OEM Mikuni carb upper rack bracket long MOUNTING SCREW, zinc-plated alloy-steel, panhead, phillips-drive. Use 2 per carb on all 1992-98 XJ600 Seca II models on the forward (front) bracket that also secures the choke system pull-handle to the #1 carb. Each.
$ 3.00




HCP910 Aftermarket Mikuni carb upper rack bracket short MOUNTING SCREW, zinc-plated alloy-steel, panhead, phillips-drive. For all 1992-98 XJ600 Seca II models. The forward (front) brackets use 6 of these screws, and two of the long screws below; the rear upper bracket (joining carbs #2 and #3 together) uses 4 of these screws, each:
$ 1.50

HCP910SET6 Aftermarket Mikuni carb upper rack bracket short MOUNTING SCREWS, set of 6:
$ 8.50

HCP910SET10 Aftermarket Mikuni carb upper rack bracket short MOUNTING SCREWS, set of 10:
$ 13.95


HCP911 Aftermarket Mikuni carb upper rack bracket long MOUNTING SCREW, zinc-plated alloy-steel, panhead, phillips-drive. Use 2 per carb on all 1992-98 XJ600 Seca II models on the bracket that also secures the choke system pull-handle to the #1 carb. Each.
$ 1.95




- These replacement panhead phillips-drive screws have a polished finish and are made from 18-8 stainless steel:

HCP62 Aftermarket Mikuni carb upper rack bracket short MOUNTING SCREW, 18-8 stainless-steel, panhead, phillips-drive. For all 1992-98 XJ600 Seca II models. The forward (front) brackets use 6 of these screws, and two of the long screws below; the rear upper bracket (joining carbs #2 and #3 together) uses 4 of these screws, each:
$ 1.50

HCP62SET6 Aftermarket Mikuni carb upper rack bracket short MOUNTING SCREWS, set of 6:
$ 8.25

HCP62SET10 Aftermarket Mikuni carb upper rack bracket short MOUNTING SCREWS, set of 10:
$ 12.95


HCP307 Aftermarket Mikuni carb upper rack bracket long MOUNTING SCREW, 18-8 stainless-steel, panhead, phillips-drive. Use 2 per carb on all 1992-98 XJ600 Seca II models on the bracket that also secures the choke system pull-handle to the #1 carb. Each.
$ 1.50




- These replacement button head hex-drive screws have a polished finish and are made from 18-8 stainless steel:

HCP308 Aftermarket Mikuni carb upper rack bracket short MOUNTING SCREW, 18-8 stainless-steel, polished button head, hex-drive. For all 1992-98 XJ600 Seca II models. The forward (front) brackets use 6 of these screws, and two of the long screws below; the rear upper bracket (joining carbs #2 and #3 together) uses 4 of these screws, each:
$ 1.25

HCP308SET6 Aftermarket Mikuni carb upper rack bracket short MOUNTING SCREWS, set of 6:
$ 6.50

HCP308SET10 Aftermarket Mikuni carb upper rack bracket short MOUNTING SCREWS, set of 10:
$ 9.95


HCP309 Aftermarket Mikuni carb upper rack bracket long MOUNTING SCREW, 18-8 stainless-steel, polished button head, hex-drive. Use 2 per carb on all 1992-98 XJ600 Seca II models on the bracket that also secures the choke system pull-handle to the #1 carb. Each.
$ 1.00




- These replacement socket head hex-drive screws have a smooth, polished head and are made from 18-8 stainless steel:

HCP310 Aftermarket Mikuni carb upper rack bracket short MOUNTING SCREW, 18-8 stainless steel, smooth polished socket head, hex-drive. For all 1992-98 XJ600 Seca II models. The forward (front) brackets use 6 of these screws, and two of the long screws below; the rear upper bracket (joining carbs #2 and #3 together) uses 4 of these screws, each:
$ 1.50

HCP310SET6 Aftermarket Mikuni carb upper rack bracket short MOUNTING SCREWS, set of 6:
$ 5.95

HCP310SET10 Aftermarket Mikuni carb upper rack bracket short MOUNTING SCREWS, set of 10:
$ 8.95


HCP311 Aftermarket Mikuni carb upper rack bracket long MOUNTING SCREW, 18-8 stainless steel, smooth polished socket head, hex-drive Use 2 per carb on all 1992-98 XJ600 Seca II models on the bracket that also secures the choke system pull-handle to the #1 carb. Each.
$ 1.00




- These replacement socket head hex-drive screws have a black oxide-coated finish and are made from alloy steel:

HCP64 Aftermarket Mikuni carb upper rack bracket short MOUNTING SCREW, black oxide-coated steel, ribbed socket head, hex-drive. . For all 1992-98 XJ600 Seca II models. The forward (front) brackets use 6 of these screws, and two of the long screws below; the rear upper bracket (joining carbs #2 and #3 together) uses 4 of these screws, each:
$ 1.00

HCP64SET6 Aftermarket Mikuni carb upper rack bracket short MOUNTING SCREWS, set of 6:
$ 4.75

HCP64SET10 Aftermarket Mikuni carb upper rack bracket short MOUNTING SCREWS, set of 10:
$ 7.95


HCP312 Aftermarket Mikuni carb upper rack bracket long MOUNTING SCREW, black oxide-coated steel, ribbed socket head, hex-drive. Use 2 per carb on all 1992-98 XJ600 Seca II models on the bracket that also secures the choke system pull-handle to the #1 carb. Each.
$ 1.50




MIKUNI CARB LOWER RACK BRACKET HARDWARE:

Mikuni Carb Lower Rack Brackets:

Our re-plated Mikuni carb lower rack individual BRACKETS allow you to re-create the original look and beauty of these carb racks. These parts are available re-plated to their correct original silver- or yellow-zinc appearance. If you need to replace any missing hardware, or just want to create a show-winning look, then you should start your shopping list here! NOTE: all rack brackets are re-plated, used parts, and as such, may have minor cosmetic flaws (tooling marks, fastener marks, etc.). Most such marks will not be visible once installed. Also, all re-plated items require a refundable core charge which will be credited back to you once you return a same-model, same-type of item(s) as you purchased. Since these are re-plated used parts, we do require an exchange for your original parts so we can have a steady supply of parts to be processed and re-plated for future sales.


HCP5481RP OEM re-plated carb lower rack lateral BRACKET, long L-shaped bracket carries and aligns all four carb bodies. Beautiful silver-zinc plating brings the bottom side of these carbs to life. Fits all BS28-series carbs as used on XJ550 Maxim, Seca, and XJ550 Euro models. NOTE: requires a $ 25.00 core charge, refundable upon the return of an undamaged, same-model, same-type bracket.
$ 29.95 + $ 25.00 refundable core charge

HCP14256RP OEM re-plated carb lower rack lateral BRACKET, long L-shaped bracket carries and aligns all four carb bodies. Beautiful silver-zinc plating brings the bottom side of these carbs to life. Fits all BS30-series carbs as used on XJ650 Turbo models. NOTE: requires a $ 25.00 core charge, refundable upon the return of an undamaged, same-model, same-type bracket.
$ 39.95 + $ 25.00 refundable core charge


HCP16339RP OEM re-plated carb lower rack lateral BRACKET, long L-shaped bracket carries and aligns all four carb bodies. Beautiful silver-zinc plating brings the bottom side of these carbs to life. Fits all BS33-series carbs as used on all water-cooled XJ700-X and XJ750-X models. NOTE: requires a $ 25.00 core charge, refundable upon the return of an undamaged, same-model, same-type bracket.
$ 39.95 + $ 25.00 refundable core charge

HCP17741RP OEM re-plated carb lower rack lateral bracket EXTENSION, short L-shaped bracket attaches to the ends of the HCP14633 bracket above. Beautiful silver-zinc plating brings the bottom side of these carbs to life. Fits all BS33-series carbs as used on all water-cooled XJ700-X and XJ750-X models. Use 2 per carb rack. Each. NOTE: requires a $ 25.00 core charge, refundable upon the return of an undamaged, same-model, same-type bracket.
$ 19.95 + $ 15.00 refundable core charge


HCP16340RP OEM re-plated carb lower rack lateral BRACKET, long L-shaped bracket carries and aligns all four carb bodies. Beautiful silver-zinc plating brings the bottom side of these carbs to life. Fits all BS35- and BS36-series carbs as used on XJ900 models. NOTE: requires a $ 25.00 core charge, refundable upon the return of an undamaged, same-model, same-type bracket.
$ 39.95 + $ 25.00 refundable core charge

HCP16341RP OEM re-plated carb lower rack lateral BRACKET, long L-shaped bracket carries and aligns all four carb bodies. Beautiful silver-zinc plating brings the bottom side of these carbs to life. Fits all BS34-series carbs as used on all XJ1100 models. NOTE: requires a $ 25.00 core charge, refundable upon the return of an undamaged, same-model, same-type bracket.
$ 39.95 + $ 25.00 refundable core charge


HCP14257RP OEM re-plated carb lower rack lateral bracket IDLE SPEED BOLT EXTENSION, this bracket carries the idle speed adjuster bolt. Beautiful silver-zinc plating brings the bottom side of these carbs to life. Fits all all XJ550, XJ650 Turbo, XJ700-X, XJ750-X, and all XJ900 (BS35 and BS36 series) carbs. NOTE: requires a $ 25.00 core charge, refundable upon the return of an undamaged, same-model, same-type bracket.
$ 29.95 + $ 25.00 refundable core charge

HCP18260RP OEM re-plated carb lower rack lateral bracket IDLE SPEED BOLT EXTENSION, this bracket carries the idle speed adjuster bolt. Beautiful silver-zinc plating brings the bottom side of these carbs to life. Fits all BS34-series carbs as used on all XJ1100 models. NOTE: requires a $ 25.00 core charge, refundable upon the return of an undamaged, same-model, same-type bracket.
$ 39.95 + $ 25.00 refundable core charge


HCP9848 Aftermarket Mikuni idle speed screw rubber GROMMET, fits into the lower carb rack islde speed adjustment bolt loop opening where the idle speed screw enters the bracket. This replacement grommet is quite a bit larger than the stock grommet, but fits and works properly. Use a little bit of silicone grease on the screw's shaft where it passes through this grommet and it will be silky-smooth in operation. Fits all XJ550, XJ650 Turbo, XJ700-X, XJ750-X, and XJ900 (BS and BS36 series) carbs
$ 1.95



HCP5488RP OEM re-plated carb lower rack bracket BOWL HEAT SHIELD, this large curved should covers the entire length and width of the carb rack and is fastened to the lower rack bracket. Beautiful silver-zinc plating brings the bottom side of these carbs to life. Fits all BS28-series carbs as used on XJ550 Maxim, Seca, and XJ550 Euro models. NOTE: requires a $ 25.00 core charge, refundable upon the return of an undamaged, same-model, same-type shield.
$ 49.95 + $ 25.00 refundable core charge



Mikuni Carb Lower Rack Bracket Fasteners:

e7) OEM and aftermarket Mikuni carb lower rack bracket MOUNTING SCREWS, available in a variety of styles, materials, and finishes.

NOTE: originally, these screws were a natural finish, panhead phillips-drive style and only the XJ550 and XS1100 LG/LH (Midnight Special) models used a lockwasher.

ALSO, these screws were originally installed (and should be re-installed) with a low-strength thread locking fluid applied.

Therefore, these screws may be VERY difficult to remove and it is highly recommended that you obtain the correct size JIS style screwdriver (or an impact driver) to remove them without stripping the slots.

These screws require the use of a semi-permanent thread-locker fluid during installation.


For all XJ550, 1984-85 FJ600, XJ650 Turbo, XJ700-X, XJ750-X, all XJ900RK, RL, N/FN, and F models, XJ1100, and all XS1100 models:

- These replacement panhead phillips-drive screws have a natural finish and are made from alloy steel:

HCP1030 OEM Mikuni carb lower rack bracket short MOUNTING SCREW, dark grey plated alloy-steel, panhead, phillips-drive. XJ550 and 1980-81 XS1100 LG/LH (Midnight Special) models should also use the HCP315 lockwashers with these screws. Each:
$ 1.95

HCP1030SET6 OEM Mikuni carb lower rack bracket short MOUNTING SCREWS, set of 6:
$ 7.95

HCP1030SET8 OEM Mikuni carb lower rack bracket short MOUNTING SCREWS, set of 8:
$ 9.95



HCP1901 OEM Mikuni carb lower rack bracket long MOUNTING SCREW, dark grey plated alloy-steel, panhead, phillips-drive, used in the outermost end holes only on XJ700-X and XJ750-X models, each:
$ 1.95

HCP1901SET2 OEM Mikuni carb lower rack bracket long MOUNTING SCREWS, set of 2:
$ 2.95



HCP2922 Aftermarket Mikuni carb lower rack bracket short MOUNTING SCREW, bright zinc-plated alloy-steel, panhead, phillips-drive. XJ550 and 1980-81 XS1100 LG/LH (Midnight Special) models should also use the HCP916 lockwashers with these screws. Each:
$ 1.25

HCP2922SET6 Aftermarket Mikuni carb lower rack bracket short MOUNTING SCREWS, set of 6:
$ 6.95

HCP2922SET8 Aftermarket Mikuni carb lower rack bracket short MOUNTING SCREWS, set of 8:
$ 8.95



HCP21363 Aftermarket Mikuni carb lower rack bracket long MOUNTING SCREW, zinc-plated alloy-steel, panhead, phillips-drive, used in the outermost end holes only on XJ700-X and XJ750-X models, each.
$ 1.50

HCP21363SET2 Aftermarket Mikuni carb lower rack bracket long MOUNTING SCREWS, set of 2:
$ 2.50



HCP21362 Aftermarket Mikuni carb lower rack bracket short MOUNTING SCREW, 18-8 stainless-steel, panhead, phillips-drive. XJ550 and 1980-81 XS1100 LG/LH (Midnight Special) models should also use the HCP319 lockwashers with these screws. Each:
$ 1.50

HCP21362SET6 Aftermarket Mikuni carb lower rack bracket short MOUNTING SCREWS, set of 6:
$ 8.00

HCP21362SET8 Aftermarket Mikuni carb lower rack bracket short MOUNTING SCREWS, set of 8:
$ 10.50



HCP2923 Aftermarket Mikuni carb lower rack bracket long MOUNTING SCREW, 18-8 stainless-steel, panhead, phillips-drive, used in the outermost end holes only on XJ700-X and XJ750-X models, each.
$ 1.95

HCP2923SET2 Aftermarket Mikuni carb lower rack bracket long MOUNTING SCREWS, set of 2:
$ 3.75




- These replacement button head hex-drive screws have a polished finish and are made from 18-8 stainless steel:

HCP6714 Aftermarket Mikuni carb lower rack bracket short MOUNTING SCREW, 18-8 stainless-steel, polished button head, hex-drive. XJ550 and 1980-81 XS1100 LG/LH (Midnight Special) models should also use the HCP319 lockwashers with these screws. Each:
$ 1.50

HCP6714SET6 Aftermarket Mikuni carb lower rack bracket short MOUNTING SCREWS, set of 6:
$ 8.50

HCP6714SET8 Aftermarket Mikuni carb lower rack bracket short MOUNTING SCREWS, set of 8:
$ 11.00



HCP6713 Aftermarket Mikuni carb lower rack bracket long MOUNTING SCREW, 18-8 stainless-steel, polished button head, hex-drive, used in the outermost end holes only on XJ700-X and XJ750-X models, each:
$ 1.95

HCP6713SET2 Aftermarket Mikuni carb lower rack bracket long MOUNTING SCREWS, set of 2:
$ 3.75




- These replacement socket head hex-drive screws have a smooth polished head and are made from 18-8 stainless steel:

HCP6716 Aftermarket Mikuni carb lower rack bracket short MOUNTING SCREW, s18-8 stainless steel, smooth polished socket head, hex-drive. XJ550 and 1980-81 XS1100 LG/LH (Midnight Special) models should also use the HCP319 lockwashers with these screws. Each:
$ 1.50

HCP6716SET6 Aftermarket Mikuni carb lower rack bracket short MOUNTING SCREWS, set of 6:
$ 5.95

HCP6716SET8 Aftermarket Mikuni carb lower rack bracket short MOUNTING SCREWS, set of 8:
$ 8.95



HCP6639 Aftermarket Mikuni carb lower rack bracket long MOUNTING SCREW, 18-8 stainless steel, smooth polished socket head, hex-drive, used in the outermost end holes only on XJ700-X and XJ750-X models, each:
$ 1.95

HCP6639SET2 Aftermarket Mikuni carb lower rack bracket long MOUNTING SCREWS, set of 2:
$ 2.95




- These replacement socket head hex-drive screws have a black oxide-coated finish and are made from alloy steel:

HCP6715 Aftermarket Mikuni carb lower rack bracket short MOUNTING SCREW, black oxide-coated steel, ribbed socket head, hex-drive. XJ550 and 1980-81 XS1100 LG/LH (Midnight Special) models should also use the HCP321 lockwashers with these screws. Each:
$ 1.25

HCP6715SET6 Aftermarket Mikuni carb lower rack bracket short MOUNTING SCREWS, set of 6:
$ 6.95

HCP6715SET8 Aftermarket Mikuni carb lower rack bracket short MOUNTING SCREWS, set of 8:
$ 8.95



HCP6640 Aftermarket Mikuni carb lower rack bracket long MOUNTING SCREW, black oxide-coated steel, ribbed socket head, hex-drive, used in the outermost end holes only on XJ700-X and XJ750-X models, each:
$ 1.95

HCP6640SET2 Aftermarket Mikuni carb lower rack bracket long MOUNTING SCREWS, set of 2:
$ 2.95





HCP315 OEM Mikuni lower rack bracket screw LOCK WASHER, zinc-plated alloy steel. Used on all XJ550 and 1980-81 XS1100 LG/LH (Midnight Special) models. Each:
$ 2.95

HCP315SET8 OEM Mikuni lower rack bracket screw LOCK WASHER, set of 8:
$ 21.95


HCP916 Aftermarket Mikuni lower rack bracket screw LOCK WASHER, zinc-plated alloy steel. Used on all XJ550 and 1980-81 XS1100 LG/LH (Midnight Special) models. Each:
$ 1.25

HCP916SET8 Aftermarket Mikuni lower rack bracket screw LOCK WASHER, set of 8:
$ 8.95


HCP319 Aftermarket Mikuni lower rack bracket screw LOCK WASHER, 18-8 stainless steel. Used on all XJ550 and 1980-81 XS1100 LG/LH (Midnight Special) models. Each:
$ 1.50

HCP319SET8 Aftermarket Mikuni lower rack bracket screw LOCK WASHER, set of 8:
$ 9.95


HCP321 Aftermarket Mikuni lower rack bracket screw LOCK WASHER, black oxide-coated alloy steel. Used on all XJ550 and 1980-81 XS1100 LG/LH (Midnight Special) models. Each:
$ 1.75

HCP321SET8 Aftermarket Mikuni lower rack bracket screw LOCK WASHER, set of 8:
$ 11.95




For all 1992-98 XJ600 Seca II models:

HCP60 OEM Mikuni carb lower rack bracket MOUNTING SCREW, zinc-plated alloy-steel, panhead, phillips-drive, fits all 1992-96 XJ600 Seca II models, use 8 per rack, each:
$ 2.95

HCP60SET8 OEM Mikuni carb lower rack bracket short MOUNTING SCREWS, set of 8:
$ 22.50



HCP168 OEM Mikuni carb lower rack bracket MOUNTING SCREW, zinc-plated alloy-steel, panhead, phillips-drive, fits all 1997-98 XJ600 Seca II models, each:
$ 1.00

HCP168SET8 OEM Mikuni carb lower rack bracket MOUNTING SCREWS, set of 8:
$ 7.95




HCP910 Aftermarket Mikuni carb lower rack bracket MOUNTING SCREW, zinc-plated alloy-steel, panhead, phillips-drive, fits all 1992-98 XJ600 Seca II models, use a total of 18 per rack, each:
$ 1.50

HCP910SET8 Aftermarket Mikuni carb lower rack bracket MOUNTING SCREWS, set of 8:
$ 10.95



- These replacement panhead phillips-drive screws have a polished finish and are made from 18-8 stainless steel:

HCP62 Aftermarket Mikuni carb lower rack bracket MOUNTING SCREW, 18-8 stainless-steel, panhead, phillips-drive, fits all 1992-98 XJ600 Seca II models, use a total of 18 per rack, each:
$ 1.50

HCP62SET8 Aftermarket Mikuni carb lower rack bracket MOUNTING SCREWS, set of 8:
$ 10.95



- These replacement button head hex-drive screws have a polished finish and are made from 18-8 stainless steel:

HCP308 Aftermarket Mikuni carb lower rack bracket MOUNTING SCREW, 18-8 stainless-steel, polished button head, hex-drive, fits all 1992-98 XJ600 Seca II models, use 8 per rack, each:
$ 1.25

HCP308SET8 Aftermarket Mikuni carb lower rack bracket MOUNTING SCREWS, set of 8:
$ 7.25




- These replacement socket head hex-drive screws have a smooth, polished head and are made from 18-8 stainless steel:

HCP310 Aftermarket Mikuni carb lower rack bracket MOUNTING SCREW, 18-8 stainless steel, smooth polished socket head, hex-drive, fits all 1992-98 XJ600 Seca II models, use 8 per rack, each:
$ 1.50

HCP310SET8 Aftermarket Mikuni carb lower rack bracket MOUNTING SCREWS, set of 8:
$ 6.95



- These replacement socket head, hex-drive screws have a black oxide-coated finish and are made from alloy steel:

HCP64 Aftermarket Mikuni carb lower rack bracket MOUNTING SCREW, black oxide-coated steel, ribbed socket head, hex-drive, fits all 1992-98 XJ600 Seca II models, use 8 per rack, each:
$ 1.00

HCP64SET8 Aftermarket Mikuni carb lower rack bracket MOUNTING SCREWS, set of 8:
$ 6.95




MIKUNI CARB FLOAT BOWL HARDWARE:

bds2) OEM and aftermarket Mikuni carb bowl-to-body MOUNTING SCREW, available in a variety of styles, materials, and finishes. All Mikuni model carbs originally used an alloy steel, panhead, phillips-drive, with a zinc-plated finish, and used an integral lockwasher (except for the 1992-98 XJ600 Seca II models, which used lockwashers only on the screws that secured the idle speed support bracket to the bowls at its 3 mounting positions; all of the other bowl screws did not use lockwashers).

Current OEM and most of the aftermarket screws do not have the integral lockwasher, and a separate lockwasher must be ordered from the selection listed further below for those models that require them.


For XJ550 models:

HCP3696 OEM Mikuni carb bowl-to-body MOUNTING SCREW, zinc-plated alloy-steel, panhead, phillips-drive. Use 4 per bowl, each:
$ 2.50

HCP3696SET4 OEM Mikuni carb bowl-to-body MOUNTING SCREWS, set of 4:
$ 9.50

HCP3696SET16 OEM Mikuni carb bowl-to-body MOUNTING SCREWS, set of 16:
$ 34.00



HCP5482 Aftermarket Mikuni carb bowl-to-body MOUNTING SCREW, zinc-plated alloy-steel, panhead, phillips-drive. Use 4 per bowl, each:
$ 1.00

HCP5482SET4 Aftermarket Mikuni carb bowl-to-body MOUNTING SCREWS, set of 4:
$ 3.50

HCP5482SET16 Aftermarket Mikuni carb bowl-to-body MOUNTING SCREWS, set of 16:
$ 8.95



HCP21356 Aftermarket Mikuni carb bowl-to-body MOUNTING SCREW, 18-8 stainless-steel, panhead, phillips-drive. Use 4 per bowl, each:
$ 1.50

HCP21356SET4 Aftermarket Mikuni carb bowl-to-body MOUNTING SCREWS, set of 4:
$ 4.95

HCP21356SET16 Aftermarket Mikuni carb bowl-to-body MOUNTING SCREWS, set of 16:
$ 12.95



HCP5486 Aftermarket Mikuni carb bowl-to-body MOUNTING SCREW, phillips-drive panhead screw with gold chromate finish. Has an integral lockwasher. Use 4 per bowl, each:
$ 1.95

HCP5486SET4 Aftermarket Mikuni carb bowl-to-body MOUNTING SCREWS, set of 4:
$ 7.50

HCP5486SET16 Aftermarket Mikuni carb bowl-to-body MOUNTING SCREWS, set of 16:
$ 22.95



HCP5485 Aftermarket Mikuni carb bowl-to-body MOUNTING SCREW, 18-8 stainless-steel, polished button head, hex-drive. Use 4 per bowl, each:
$ 1.50

HCP5485SET4 Aftermarket Mikuni carb bowl-to-body MOUNTING SCREWS, set of 4:
$ 4.95

HCP5485SET16 Aftermarket Mikuni carb bowl-to-body MOUNTING SCREWS, set of 16:
$ 10.95



HCP5483 Aftermarket Mikuni carb bowl-to-body MOUNTING SCREW, 18-8 stainless steel, smooth polished socket head, hex-drive. Use 4 per bowl, each:
$ 1.50

HCP5483SET4 Aftermarket Mikuni carb bowl-to-body MOUNTING SCREWS, set of 4:
$ 5.25

HCP5483SET16 Aftermarket Mikuni carb bowl-to-body MOUNTING SCREWS, set of 16:
$ 14.95



HCP5484 Aftermarket Mikuni carb bowl-to-body MOUNTING SCREW, black oxide-coated steel, ribbed socket head, hex-drive. Use 4 per bowl, each:
$ 1.50

HCP5484SET4 Aftermarket Mikuni carb bowl-to-body MOUNTING SCREWS, set of 4:
$ 4.95

HCP5484SET16 Aftermarket Mikuni carb bowl-to-body MOUNTING SCREWS, set of 16:
$ 10.95




For 1992-98 XJ600 Seca II models:

NOTE: these models use short mounting screws, without lockwashers, in all positions except for the three (3) screws that hold the idle speed bracket to the #2 and #3 carb bowls ---- and those long screws do require the use of a lockwasher.

1992-98 models originally used bright (zinc-plated) fasteners, while the 1998 models used black fasteners.


HCP3696 OEM Mikuni carb bowl-to-body short MOUNTING SCREW, zinc-plated alloy-steel, panhead, phillips-drive. Use 4 per bowl, each:
$ 2.50

HCP3696SET4 OEM Mikuni carb bowl-to-body short MOUNTING SCREWS, set of 4:
$ 9.50

HCP3696SET13 OEM Mikuni carb bowl-to-body short MOUNTING SCREWS, set of 13:
$ 27.95



HCP5482 Aftermarket Mikuni carb bowl-to-body short MOUNTING SCREW, zinc-plated alloy-steel, panhead, phillips-drive. Use 4 per bowl, each:
$ 1.00

HCP5482SET4 Aftermarket Mikuni carb bowl-to-body short ]MOUNTING SCREWS, set of 4:
$ 3.50

HCP5482SET13 Aftermarket Mikuni carb bowl-to-body short MOUNTING SCREWS, set of 13:
$ 7.95


HCP6065 Aftermarket Mikuni carb bowl-to-body long MOUNTING SCREW, zinc-plated alloy-steel, panhead, phillips-drive. Lockwashers should be used with these screws and can be ordered separate below. Use 3 per rack, each:
$ 1.50

HCP6065SET3 Aftermarket Mikuni carb bowl-to-body long MOUNTING SCREWS, set of 3:
$ 3.95




HCP21356 Aftermarket Mikuni carb bowl-to-body short MOUNTING SCREW, 18-8 stainless-steel, panhead, phillips-drive. Use 4 per bowl, each:
$ 1.50

HCP21356SET4 Aftermarket Mikuni carb bowl-to-body short MOUNTING SCREWS, set of 4:
$ 4.95

HCP21356SET13 Aftermarket Mikuni carb bowl-to-body short MOUNTING SCREWS, set of 13:
$ 10.95


HCP6067 Aftermarket Mikuni carb bowl-to-body long MOUNTING SCREW, 18-8 stainless-steel, panhead, phillips-drive. Lockwashers should be used with these screws and can be ordered separate below. Use 3 per rack, each:
$ 1.95

HCP6067SET3 Aftermarket Mikuni carb bowl-to-body long MOUNTING SCREWS, set of 3:
$ 5.25




HCP5485 Aftermarket Mikuni carb bowl-to-body short MOUNTING SCREW, 18-8 stainless-steel, polished button head, hex-drive. Use 4 per bowl, each:
$ 1.50

HCP5485SET4 Aftermarket Mikuni carb bowl-to-body short MOUNTING SCREWS, set of 4:
$ 4.95

HCP5485SET13 Aftermarket Mikuni carb bowl-to-body short MOUNTING SCREWS, set of 13:
$ 9.95


HCP22612 Aftermarket Mikuni carb bowl-to-body long MOUNTING SCREW, 18-8 stainless-steel, polished button head, hex-drive. Lockwashers should be used with these screws and can be ordered separate below. Use 3 per rack, each:
$ 1.95

HCP22612SET3 Aftermarket Mikuni carb bowl-to-body long MOUNTING SCREWS, set of 3:
$ 5.25




HCP5483 Aftermarket Mikuni carb bowl-to-body short MOUNTING SCREW, 18-8 stainless steel, smooth polished socket head, hex-drive. Use 4 per bowl, each:
$ 1.50

HCP5483SET4 Aftermarket Mikuni carb bowl-to-body short MOUNTING SCREWS, set of 4:
$ 5.25

HCP5483SET13 Aftermarket Mikuni carb bowl-to-body short MOUNTING SCREWS, set of 13:
$ 12.95


HCP22613 Aftermarket Mikuni carb bowl-to-body long MOUNTING SCREW, 18-8 stainless steel, smooth polished socket head, hex-drive. Lockwashers should be used with these screws and can be ordered separate below. Use 3 per rack, each:
$ 1.95

HCP22613SET3 Aftermarket Mikuni carb bowl-to-body long MOUNTING SCREWS, set of 3:
$ 5.25




HCP5484 Aftermarket Mikuni carb bowl-to-body short MOUNTING SCREW, black oxide-coated steel, ribbed socket head, hex-drive. Use 4 per bowl, each:
$ 1.50

HCP5484SET4 Aftermarket Mikuni carb bowl-to-body short MOUNTING SCREWS, set of 4:
$ 4.95

HCP5484SET13 Aftermarket Mikuni carb bowl-to-body short MOUNTING SCREWS, set of 13:
$ 9.95


HCP22614 Aftermarket Mikuni carb bowl-to-body short MOUNTING SCREW, black oxide-coated alloy steel, ribbed socket head, hex-drive. Lockwashers should be used with these screws and can be ordered separate below. Use 3 per rack, each:
$ 1.75

HCP22614SET3 Aftermarket Mikuni carb bowl-to-body short MOUNTING SCREWS, set of 3:
$ 4.95




For 1984-85 FJ600, XJ650 Turbo, XJ700-X, XJ750-X, all XJ900RK, RL, N/FN, and F models, XJ1100, and all XS1100 models:

HCP2940 OEM Mikuni carb bowl-to-body MOUNTING SCREWS. These panhead, phillips-drive, alloy steel screws have a dark grey plated finish, and are approximately 2mm longer than stock, each. Use 4 per bowl, each:
$ 3.50

HCP2940SET4 OEM Mikuni carb bowl-to-body MOUNTING SCREWS, set of 4:
$ 13.95

HCP2940SET16 OEM Mikuni carb bowl-to-body MOUNTING SCREWS, set of 16:
$ 49.95



HCP2643 Aftermarket Mikuni carb bowl-to-body MOUNTING SCREW, zinc-plated alloy steel, panhead, phillips drive, approximately 2mm longer than stock. Use 4 per bowl, each:
$ 1.75

HCP2643SET4 Aftermarket Mikuni carb bowl-to-body MOUNTING SCREWS, set of 4:
$ 5.50

HCP2643SET16 Aftermarket Mikuni carb bowl-to-body MOUNTING SCREWS, set of 16:
$ 18.95



HCP1358 Aftermarket Mikuni carb bowl-to-body MOUNTING SCREW, with an integral lock washer as original, panhead, phillips drive, gold chromate finish. Use 4 per bowl, each:
$ 1.95

HCP1358SET4 Aftermarket Mikuni carb bowl-to-body MOUNTING SCREWS, with lock washers, set of 4:
$ 6.95

HCP1358SET16 Aftermarket Mikuni carb bowl-to-body MOUNTING SCREWS, with lock washers, set of 16:
$ 19.95



HCP302 Aftermarket Mikuni carb bowl-to-body MOUNTING SCREW, 18-8 stainless steel, panhead, phillips-drive, approximately 2mm longer than stock. Use 4 per bowl, each:
$ 1.50

HCP302SET4 Aftermarket Mikuni carb bowl-to-body MOUNTING SCREWS, set of 4:
$ 4.95

HCP302SET16 Aftermarket Mikuni carb bowl-to-body MOUNTING SCREWS, set of 16:
$ 12.95



HCP303 Aftermarket Mikuni carb bowl-to-body MOUNTING SCREW, 18-8 stainless-steel, polished button head, hex-drive, approximately 2mm longer than stock. Use 4 per bowl, each:
$ 1.95

HCP303SET4 Aftermarket Mikuni carb bowl-to-body MOUNTING SCREWS, set of 4:
$ 5.95

HCP303SET16 Aftermarket Mikuni carb bowl-to-body MOUNTING SCREWS, set of 16:
$ 14.95



HCP56 Aftermarket Mikuni carb bowl-to-body MOUNTING SCREW, 18-8 stainless steel, smooth polished socket head, hex-drive, approximately 2mm longer than stock. Use 4 per bowl, each:
$ 1.95

HCP56SET4 Aftermarket Mikuni carb bowl-to-body MOUNTING SCREWS, set of 4:
$ 4.95

HCP56SET16 Aftermarket Mikuni carb bowl-to-body MOUNTING SCREWS, set of 16:
$ 13.95



HCP58 Aftermarket Mikuni carb bowl-to-body MOUNTING SCREW, black oxide-coated alloy steel, ribbed socket head, hex-drive, approximately 2mm longer than stock. Use 4 per bowl, each:
$ 1.50

HCP58SET4 Aftermarket Mikuni carb bowl-to-body MOUNTING SCREWS, set of 4:
$ 4.95

HCP58SET16 Aftermarket Mikuni carb bowl-to-body MOUNTING SCREWS, set of 16:
$ 9.95




bds3) OEM and aftermarket Mikuni carb bowl-to-body mounting screw LOCK WASHER, available in a variety of styles, materials, and finishes. All Mikuni model carbs (except 1992-98 XJ600 Seca II models) originally used a panhead, phillips-drive bowl mounting screw that had an integral lockwasher. Current OEM and many of the replacement screws do not have the integral lockwasher, and thus a separate lockwasher should be ordered from the selection listed below:


For XJ550 and 1992-98 XJ600 Seca II models:

HCP326 OEM carb bowl mounting screw LOCK WASHER, zinc-plated alloy steel, each:
$ 1.95

HCP326SET4 OEM carb bowl mounting screw LOCK WASHERS, set of 4:
$ 7.50

HCP326SET16 OEM carb bowl mounting screw LOCK WASHERS, set of 16:
$ 14.95



HCP922 Aftermarket carb bowl mounting screw LOCK WASHER, zinc-plated alloy steel, each:
$ 0.95

HCP922SET4 Aftermarket carb bowl mounting screw LOCK WASHERS, set of 4:
$ 3.50

HCP922SET16 Aftermarket carb bowl mounting screw LOCK WASHERS, set of 16:
$ 7.95



HCP336 Aftermarket carb bowl mounting screw LOCK WASHER, 18-8 stainless-steel, each:
$ 0.95

HCP336SET4 Aftermarket carb bowl mounting screw LOCK WASHERS, set of 4:
$ 3.50

HCP336SET16 Aftermarket carb bowl mounting screw LOCK WASHERS, set of 16:
$ 7.95



HCP342 Aftermarket carb bowl mounting screw LOCK WASHER, black oxide-coated alloy steel, each:
$ 0.95

HCP342SET4 Aftermarket carb bowl mounting screw LOCK WASHERS, set of 4:
$ 3.25

HCP342SET16 Aftermarket carb bowl mounting screw LOCK WASHERS, set of 16:
$ 8.95



For XJ650 Turbo, XJ700-X, XJ750-X, all XJ900RK, RL, N/FN, and F models, and XJ1100 models:

HCP55 OEM Mikuni carb bowl-to-body mounting screw LOCK WASHER, zinc-plated alloy steel, each:
$ 1.95

HCP55SET4 OEM Mikuni carb bowl-to-body mounting screw LOCK WASHERS, set of 4:
$ 7.50

HCP55SET16 OEM Mikuni carb bowl-to-body mounting screw LOCK WASHERS, set of 16:
$ 14.95



HCP913 Aftermarket Mikuni carb bowl-to-body mounting screw LOCK WASHER, zinc-plated alloy steel, each:
$ 1.00

HCP913SET4 Aftermarket Mikuni carb bowl-to-body mounting screw LOCK WASHERS, set of 4:
$ 3.75

HCP913SET16 Aftermarket Mikuni carb bowl-to-body mounting screw LOCK WASHERS, set of 16:
$ 5.50



HCP57 Aftermarket Mikuni carb bowl-to-body mounting screw LOCK WASHER, 18-8 stainless steel, each:
$ 1.00

HCP57SET4 Aftermarket Mikuni carb bowl-to-body mounting screw LOCK WASHERS, set of 4:
$ 3.25

HCP57SET16 Aftermarket Mikuni carb bowl-to-body mounting screw LOCK WASHERS, set of 16:
$ 7.95



HCP59 Aftermarket Mikuni carb bowl-to-body mounting screw LOCK WASHER, e black-oxide coated alloy steel, each:
$ 1.00

HCP59SET4 Aftermarket Mikuni carb bowl-to-body mounting screw LOCK WASHERS, set of 4:
$ 2.95

HCP59SET16 Aftermarket Mikuni carb bowl-to-body mounting screw LOCK WASHERS, set of 16:
$ 6.95




MIKUNI CARB BOWL DRAIN SCREWS:

g5m) OEM and aftermarket Mikuni carb BOWL DRAIN SCREW....the ones that are always such a bear to remove. OEM screws are bright-plated alloy steel with a panhead, phillips-drive design, and come in both the version WITH the o-ring under the screw head (all XJ550, XJ650 Turbo, all XJ900RK, RL, N/FN, and F models, and XJ1100 models) and the style WITHOUT the o-ring under the screw head (all XJ700-X and XJ750-X models).

NOTE: If you plan on using the HCP865 screws WITHOUT any o-rings, we VERY STRONGLY suggest you use the HCP4399 drain screws instead, and here's why: for whatever reason that Mikuni/Yamaha decided to use the o-rings on these bowl drain screws, the fact is that in order to make the o-ring land or "groove" (where the o-ring sits), they turned down the shaft of the screw by almost 2mm total, thus turning an M6 sized screw (that's the nominal size of both the HCP865 and the HCP4399 drain screws) into an M4 sized screw......kind of a "chain only as strong as its weakest link" kinda thing......since the "skinniest" part of the HCP865 screw shaft is now just a hair over 4mm diameter, and in effect this is now a M4 (4mm diameter shaft) screw.

Since these screws tend to get stuck in the bowls after a few years of non-use, I believe what Yamaha discovered very quickly was that these o-ringed type screws---the HCP865's with an "in reality" size of just M4---were getting stuck and shearing off right at that "weakest link" portion of the shaft....the o-ring land.....and that is why they did away with the o-ring land on the later model versions of the Mikuni carbs, and started using an unmodified version of the same screw (which is the HCP4399 screw), which is a "true" M6 screw.

In fact, the HCP865 screw and the HCP4399 screw are identical, it's just that the HCP4399 screw is not machined for a ring land.

Aftermarket socket head cap screws are an improved "never-get-stuck-again" version that are made as an 18-8 stainless steel allen head (a/k/a hex-drive socket head cap). This style works much better than the original Yamaha screw; not only is it made of stainless steel, but the larger allen-head design allows for more torque to be applied to the screw, forever ending the stripped/stuck/ruined drain screw problem that has plagued Yamaha owners forever! Note that by their design, the large allen head portion of this drain screw will be located OUTSIDE of the drain screw bore hole in the bowl, and sticks out about 1/4" from the bowl body.


And if the threaded port in the float bowl where the drain screw fits been injured, or if you want to restore the threads to their like-new condition, this thread chaser tap is what you'll need:

HCP6335 Aftermarket THREAD CHASER AND CLEAN-UP TAP, made from a high-speed uncoated steel. For the following holes:
- all Mikuni carb bowl drain screw hole.
$ 12.95

HCP28170 Aftermarket thread tap or EZ-out extractor TAP HANDLE, featuring offset tap handles and fully adjustable head for all m3-m12 size taps and size 0 to ½” extractors. This is the proper way to hold a tap or extractor to insure that the force is directed straight down and doesn’t “wobble” as you are cutting, reaming, or extracting. Much better than using pliers or vise-grips to hold the tool……..
$ 17.95


NOTE: it is recommended that anti-seize compound be used on the screw threads when fitting screws back into the carb bowl passage.



Mikuni carb bowl drain screws:

HCP865 OEM Mikuni carb BOWL DRAIN SCREW, bright plated, alloy steel, panhead, phillips drive drain screw features the machined land just below the head for the acceptance of the HCP4400 o-ring listed below (the o-ring is not included). This style drain screw is used on all XJ550, XJ650 Turbo, all XJ900RK, RL, N/FN, and F models, XJ1100, and all 1981 XS1100 models, although it will also fit all 1984-85 FJ600, 1992-98 XJ600 Seca II, XJ700-X, and XJ750-X models as well (this bikes used a drain screw without an o-ring, but this drain screw is the same size/shape). Is also correct for all of the following models: 1981-83 XS400, 1981 XS650, 1987-88, 1990, and 1995-00 XV535 Virago, 1980-82 SR250, 1981-82 XT250, 1980-82 TT250, 1983 XV500, 1980-81 XT500, 1980-81 SR500, 1982-83 XZ550, 1983-85 XVZ12, 1986-90 XVZ13, 1985-86 and 1989-2007 VMX12 V-Max models. Each:
$ 10.95

HCP865SET4 OEM Mikuni carb BOWL DRAIN SCREWS, set of 4:
$ 34.95


HCP4400 OEM Mikuni carb bowl drain screw O-RING, for the HCP865 drain screw listed above. Each:
$ 2.95

HCP4400SET4 OEM Mikuni carb bowl drain screw O-RINGS, set of 4:
$ 11.50


HCP18664 Aftermarket Mikuni carb bowl drain screw O-RING, for the HCP865 drain screw listed above. Each:
$ 2.50

HCP18664SET4 Aftermarket Mikuni carb bowl drain screw O-RINGS, set of 4:
$ 8.95



HCP14530 Aftermarket Mikuni carb BOWL DRAIN SCREW, brass, straight-blade drive drain screw features the machined land just below the head for the acceptance of the sealing o-ring (the o-ring is included). This style drain screw is used on all XJ550, XJ650 Turbo, all XJ900RK, RL, N/FN, and F models, XJ1100, and all 1981 XS1100 models, although it will also fit all 1984-85 FJ600, 1992-98 XJ600 Seca II, XJ700-X and XJ750-X models also. Each:
$ 6.95

HCP14530SET4 Aftermarket Mikuni carb BOWL DRAIN SCREWS, set of 4:
$ 24.95



HCP4399 OEM Mikuni carb BOWL DRAIN SCREW, correct bright plated, alloy steel, panhead, phillips drive drain screw. This style drain screw does NOT use (nor can it accept) an o-ring and is correct for all 1984-85 FJ600, 1986-88 FZ600, 1986-1990 YX600 Radian, 1992-98 XJ600 Seca II, XJ700-X, and XJ750-X models, but can also be used successfully on all XJ550, XJ650 Turbo, all XJ900RK, RL, N/FN, and F models, XJ1100, and all 1981 XS1100 models, each:
$ 7.95

HCP4399SET4 OEM Mikuni carb BOWL DRAIN SCREWS, set of 4:
$ 29.95


HCP16326 Aftermarket Mikuni carb BOWL DRAIN SCREW, brass, straight-blade drive drain screw. This style drain screw does NOT use (nor can it accept) an o-ring and is correct for all 1984-85 FJ600, 1986-88 FZ600, 1986-1990 YX600 Radian, 1992-98 XJ600 Seca II, XJ700-X, and XJ750-X models, but can also be used successfully on all XJ550, FJ600, XJ650 Turbo, all XJ900RK, RL, N/FN, and F models, XJ1100, and all 1981 XS1100 models, each:
$ 6.95

HCP16326SET4 Aftermarket Mikuni carb BOWL DRAIN SCREWS, set of 4:
$ 24.95



HCP22879 OEM Mikuni carb BOWL DRAIN SCREW GASKET, for use with the bowl drain screw in the center/bottom of the bowl (and not the bowl drain screw that comes in from the side of the bowl as used on some models). Use 1 per bowl on all 1979-80 XS1100 models, and on 1981 XS1100 Standard models. Each:
$ 2.95

HCP22879SET4 OEM Mikuni carb BOWL DRAIN SCREW GASKET, set of 4:
$ 10.95


HCP10028 Aftermarket Mikuni carb BOWL DRAIN SCREW GASKET, for use with the bowl drain screw in the center/bottom of the bowl (and not the bowl drain screw that comes in from the side of the bowl as used on some models). Use 1 per bowl on all 1979-80 XS1100 models, and on 1981 XS1100 Standard models. Each:
$ 1.95

HCP10028SET4 Aftermarket Mikuni carb BOWL DRAIN SCREW GASKET, set of 4:
$ 6.95




ds2) Aftermarket Mikuni carb BOWL DRAIN SCREW. Bright finish 18-8 stainless steel socker head, hex-drive, taper-point screw fits into the drain hole passage of each carb bowl. Works better than the original Yamaha screw; not only is it made of stainless steel, but the larger socket-head design allows for more torque to be applied to the screw, forever ending the stripped/stuck/ruined drain screw problem that has plagued Yamaha owners forever!

Fits all XJ550, 1984-85 FJ600, 1986-88 FZ600, 1986-1990 YX600 Radian, 1992-98 XJ600 Seca II, XJ700-X, XJ750-X, all XJ900 models, XJ1100, and all 1981 XS1100 carb bowls. The original drain screws on those all models (except the 1984-85 FJ600, 1992-98 XJ600 Seca II, XJ700-X, and XJ750-X) had an integral o-ring, which is not present on this replacement style screw. But the lack of the o-ring on this replacement screw presents absolutely no fit or sealing/leakage issues on those models originally equipped with a bowl drain screw that used an o-ring.

Note that by their design, the large socket head portion of this drain screw will be located OUTSIDE of the drain screw bore hole in the bowl, and sticks out about 1/8" from the bowl body. This additional length does not cause any problems, and after looking at them (installed) on the carb bowls, at first glance they might look "odd" the way the stick out, but after the third or fourth look, they appear normal and oddly interesting with that extended length.

NOTE: do NOT "bottom" the heads of these screws against the bowl! Tighten them to 4-5 foot-pounds of torque, just enough to seat them snugly. That is all that is necessary to prevent fuel leakage from the drain port.

NOTE: on some models, you may have to file away a tiny amount of metal on the outside of the bowl to obtain enough clearance for the head of the screw to clear and seat itself deep enough to fully cut off fuel flow thru the drain port.

It is recommended that anti-seize compound be used on the screw threads when fitting them into the carb bowl passage.


HCP8879 Aftermarket Mikuni socket head, hex-drive, 18-8 stainless-steel carb BOWL DRAIN SCREW, each:
$ 9.95

HCP8879SET4 Aftermarket Mikuni carb BOWL DRAIN SCREWS, set of 4:
$ 34.95



NOTE: good used carb bodies and float bowls are also available, please inquire.
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